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Animal Welfare Risks in Live Cattle Export from Australia to China by Sea

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Animals
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Abstract

Simple Summary There are ongoing concerns about the welfare of animals in the Australian live export trade by sea. However, information about the welfare of animals during voyages is difficult to obtain. In early 2018, the Australian government installed Independent Observers on some live export voyages. Summaries of Independent Observer (IO) reports provide a new source of information about management of animals in the live export trade. Cattle voyages from Australia to China have concerned animal welfare advocates due to their duration and lack of consistent veterinary oversight. We reviewed IO summaries on live cattle export voyages to China for the period July 2018 to December 2019 (n = 37). Key animal welfare risk factors identified in the IO summaries included: hunger, thirst, exposure to extreme temperatures, poor pen conditions, health issues, absence of veterinarians, rough seas, poor ship infrastructure, mechanical breakdown and mismanagement at discharge. Abstract There are long-standing and ongoing concerns about the welfare of animals in the Australian live export trade by sea. However, scrutiny of animal welfare on board vessels is generally hindered by a lack of independent reporting. Cattle voyages from Australia to China have concerned animal welfare advocates due to their long duration and lack of consistent veterinary oversight. In April 2018, following a media exposé of animal cruelty and declining public trust, the Australian government installed Independent Observers on some live export voyages. Summaries of Independent Observer (IO) reports by the Department of Agriculture and Water Resources (DAWR) provided a new and independent source of information about management of animals in the live export trade. The IO summaries on live cattle export voyages to China for the period July 2018 to December 2019 (n = 37) were reviewed. The IO summaries detailed voyages that carried 147,262 slaughter, feeder or breeder cattle which included both dairy and beef breeds. The long-haul voyages averaged 20 days in duration, generally departing the ports of Fremantle and Portland and discharging at ports in northern China. Key animal welfare risk factors identified in the IO summaries included: hunger, thirst, exposure to extreme temperatures, poor pen conditions, health issues, absence of veterinarians, rough seas, poor ship infrastructure, mechanical breakdown and mismanagement at discharge.
animals
Commentary
Animal Welfare Risks in Live Cattle Export from Australia to
China by Sea
Stephanie Hing 1, Sue Foster 2, * and Di Evans 3


Citation: Hing, S.; Foster, S.; Evans,
D. Animal Welfare Risks in Live
Cattle Export from Australia to China
by Sea. Animals 2021,11, 2862.
https://doi.org/10.3390/ani11102862
Academic Editor: Temple Grandin
Received: 10 September 2021
Accepted: 22 September 2021
Published: 30 September 2021
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Attribution (CC BY) license (https://
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4.0/).
1The Write Up, Perth 6000, Australia; thewriteupau@gmail.com
2Vets Against Live Export, Flinders Island 7255, Australia
3Royal Society for the Prevention of Cruelty to Animals (RSPCA) Australia, Deakin 2600, Australia;
science@rspca.org.au
*Correspondence: info@vale.org.au
Simple Summary:
There are ongoing concerns about the welfare of animals in the Australian live
export trade by sea. However, information about the welfare of animals during voyages is difficult to
obtain. In early 2018, the Australian government installed Independent Observers on some live export
voyages. Summaries of Independent Observer (IO) reports provide a new source of information
about management of animals in the live export trade. Cattle voyages from Australia to China
have concerned animal welfare advocates due to their duration and lack of consistent veterinary
oversight. We reviewed IO summaries on live cattle export voyages to China for the period July 2018
to December 2019 (n= 37). Key animal welfare risk factors identified in the IO summaries included:
hunger, thirst, exposure to extreme temperatures, poor pen conditions, health issues, absence of
veterinarians, rough seas, poor ship infrastructure, mechanical breakdown and mismanagement
at discharge.
Abstract:
There are long-standing and ongoing concerns about the welfare of animals in the Aus-
tralian live export trade by sea. However, scrutiny of animal welfare on board vessels is generally
hindered by a lack of independent reporting. Cattle voyages from Australia to China have concerned
animal welfare advocates due to their long duration and lack of consistent veterinary oversight. In
April 2018, following a media exposéof animal cruelty and declining public trust, the Australian gov-
ernment installed Independent Observers on some live export voyages. Summaries of Independent
Observer (IO) reports by the Department of Agriculture and Water Resources (DAWR) provided a
new and independent source of information about management of animals in the live export trade.
The IO summaries on live cattle export voyages to China for the period July 2018 to December 2019
(n= 37) were reviewed. The IO summaries detailed voyages that carried 147,262 slaughter, feeder or
breeder cattle which included both dairy and beef breeds. The long-haul voyages averaged
20 days
in duration, generally departing the ports of Fremantle and Portland and discharging at ports in
northern China. Key animal welfare risk factors identified in the IO summaries included: hunger,
thirst, exposure to extreme temperatures, poor pen conditions, health issues, absence of veterinarians,
rough seas, poor ship infrastructure, mechanical breakdown and mismanagement at discharge.
Keywords: animal welfare; cattle; heat stress; live export; hunger; China
1. Introduction
Animal welfare has been described as a key issue affecting the continuation of the
Australian live animal export trade [
1
]. Multiple government reviews have revealed opera-
tional and regulatory deficiencies that contribute to animal welfare risks [
2
4
]. However,
scrutiny of animal welfare is hindered by lack of transparency and independent report-
ing [
5
]. In addition, most of the studies pertaining to animal welfare in live export are
commissioned or conducted by the industry, potentially resulting in bias due to conflict of
Animals 2021,11, 2862. https://doi.org/10.3390/ani11102862 https://www.mdpi.com/journal/animals
Animals 2021,11, 2862 2 of 22
interest [
6
]. Commencing in April 2018, after media coverage of animal cruelty and declin-
ing public trust [
7
,
8
], the Australian government began deploying Independent Observers
(IOs) on some live export ships. The IOs were appointed by the Department of Agriculture
and Water Resources (DAWR; currently renamed Department of Agriculture, Water and
the Environment), the government regulator of the trade. The role of the Independent
Observer (IO) is “to monitor, observe and report on activities in approved export programs
for the purpose of ensuring the health and welfare of live animals in the course of export
activities” [
9
]. The IO sends daily records to DAWR during the voyage and at the end
of the voyage submits a written report to DAWR. DAWR then edits and summarises the
information in the report and releases this as an IO summary on its website [
9
]. Much
of the information, all of the videos and most of the photographs are omitted from the
summaries. IO reports have not been made available in their entirety despite requests
under the Freedom of Information Act (1982) [
10
]. Concerns have been raised about delayed
and limited access to the IO summaries and the degree of censorship by DAWR [
11
,
12
].
However, the IO summaries provide the most comprehensive information relating to the
welfare of live animals exported by sea in the public domain.
Australia first exported cattle to China in 2001 and since the signing of a live feeder/
slaughter cattle protocol in 2015, over 589,000 head of cattle have been exported to China
(January 2015 to April 2020) [
13
]. In 2019, 67% of exports of live breeder cattle were destined
for China [
13
] and China is recognised as a growing market and a major driver of the
Australian live cattle export industry [
14
]. The Australian Government does not mandate
an onboard veterinarian for these voyages despite the fact that they are similar in duration
to voyages to the Middle East, for which veterinarians are mandatory. In addition to
long voyage duration, the China voyages involve equatorial crossings with high heat and
humidity often in combination with rough seas and typhoon weather systems. Couple
these facts with the recent spotlight on the live cattle export trade to China after the sinking
of a ship fully loaded with export cattle on a voyage from New Zealand to China [
15
], an
analysis of the voyages is warranted.
Independent observer summaries of live cattle export voyages to China departing
Australia from July 2018 to December 2019 were published by DAWR. An IO was deployed
on 37/49 (76%) live cattle export voyages from Australia to China during that period. The
IO summaries cover voyages carrying 147,262 slaughter, feeder or breeder cattle of both
dairy and beef breeds. The median voyage length was 20 days with the voyages ranging
from 14 to 25 days (mean 19.5 days). Voyages generally departed the ports of Fremantle
(southwestern Australia; 11/37) and Portland (southeastern Australia; 24/37) and cattle
were discharged mainly at ports in northern China. These IO summaries describe voyages
on 15 different vessels including six converted container ships—MV Yangtze Fortune (7),
MV Gulf Livestock 1 (formerly MV Rahmeh and has since sunk) (4), MV Yangtze Harmony (3),
MV Ocean Ute (2), MV Anna Marra (formerly MV Awassi Express) (1) and MV Jawan (1) and
nine purpose-built cattle carriers MV Gloucester Express (4), MV Ocean Swagman (4), MV
Ganado Express (3), MV Girolando Express (3), MV Bison Express (1), MV Galloway Express (1),
MV Gelbray Express (1), MV Ocean Drover (1) and MV Shorthorn Express (1).
The authors reviewed the available IO summaries for conditions which would be
contrary to the international animal welfare guidelines of the World Organisation for
Animal Health (OIE) [
16
] or issues that had been specifically identified by Independent
Observers to impact negatively on animal welfare. If the issues were then identified in
more than one IO summary, regardless of whether the animal welfare impact was then
detailed or not in an individual IO summary, they were tabled in an Excel spreadsheet. Two
authors of the paper independently compiled such spreadsheets. Any discrepant entries
were then assessed by a third author which resulted in some entries being removed and
others being retained. The final Excel spreadsheet was agreed by all three authors (Table 1).
Animals 2021,11, 2862 3 of 22
Table 1.
Key animal welfare and relevant vessel issues in live cattle export voyages from Australia to China in 2018/2019
identified from Independent Observer Summaries.
Key Animal Welfare and Vessel Issues
IO
Report
Food
Issues
Water
Issues
Extreme
Weather
Poor Pen Condi-
tions/Insufficient
Space
Health
Issues
No Vet on
Board
Rough
Seas
Poor Infrastruc-
ture/Engine
Breakdown
Mismanagement
at Discharge
12
16
17
18
19
22
23
26
40
44
48
55
56
59
60
61
84
92
94
106
109
111
119
136
144
152
162
166
173
179
182
185
195
198
201
205
210
Total
(%)
16/37
(43%)
16/37
(43%)
19/37
(51%) 30/37 (81%) 37/37
(100%)
22/37
(59%)
11/37
(30%) 23/37 (62%) 20/37 (54%)
The severity and impact of problems could not be weighted. Some problems that
would seem trivial for animals in land-based systems, for example deprivation of water for
a couple of hours, can be critical on-board a ship depending on prevailing ship and weather
conditions and concurrent animal risks or comorbidities (Lynn Simpson pers comm).
Conversely, potentially major problems such as failure of a reverse osmosis system for
water provision to stock may have no impact if repaired promptly as the ships have water
storage capacity. With the available data, it was often not possible to assess the welfare
impact of each event on the animals or to determine how many animals were affected
when adverse welfare effects were recorded. Data was only recorded as quantitative data
providing numerical frequency of citation of the potential or confirmed animal welfare
risk factor.
Ten key risk factors impacting animal welfare were identified in the IO summaries:
hunger, thirst, exposure to extreme temperatures, poor pen conditions, health issues,
absence of veterinarians, rough seas, poor ship infrastructure, mechanical breakdown and
mismanagement at discharge (Table 1). While there are potential animal welfare risks along
the entire live export supply chain [
17
], IOs are only tasked with reporting from loading to
discharge. Hence, the animals may also have been exposed to multiple stressors outside
Animals 2021,11, 2862 4 of 22
the scope of IO reports, for example during mustering, curfews (routine food and water
deprivation prior to road transport), road transport, feedlot periods and post-discharge
(e.g., handling, housing, management and methods of slaughter).
2. Animal Welfare Risk Factors
2.1. Hunger
Issues with provision of food were described in 16/37 (43%) of voyages. These led
to food shortages and limited food access in 10/37 (27%) of voyages (Table 1). At least
4/37 (11%) voyages had to ration food or had food supplies exhausted due to extended
trip duration (e.g., IO 40, 55, 84, 182). Food deprivation was reported at all journey stages:
within 12 h of loading, during the voyage and at discharge. The IO summaries described
food deprivation on voyages that resulted from breaches of the Australian Standards for
Export of Livestock (ASEL) and as a result of deficiencies in the ASEL [18].
The ASEL Version 2.3 Section 4.2.3 (2) specifies that there must be sufficient feed on
the ship to meet anticipated needs of the cattle during the voyage plus an additional 20%
or 3 days feed, whichever is less [
18
]. These feed contingencies were not sufficient to
safeguard against food deprivation on voyages to China (e.g., IO 40, 55, 84, 182). The IO
summaries reveal that at least 6/37 (16%) voyages exceeded their planned voyage length,
e.g., 4 days longer than anticipated (IO 12), 5 days longer than anticipated (IO 17), 6 days
longer than anticipated (IO 40, 55) and 9 days longer than anticipated (IO 182). When this
occurred, insufficient food was a predictable outcome. For example, aboard the MV Ocean
Ute carrying 4593 breeding heifers in September 2019 (IO 182), the IO reported, “there was
concern part way through the voyage that there would not be sufficient fodder. Cattle were
initially fed ad lib, but between days 10–17, the feed rate was reduced to 1.6–2.1% of body
weight, which is below the ASEL-mandated rate of 2.5% kg/head”. On another voyage,
3234 cattle aboard the MV Shorthorn Express suffered severe food deprivation (IO 55). The
IO summary states, “Fodder provision to different sized pens was also not considered,
resulting in some pens not being fed ASEL-required levels for between 5 and 13 days of the
voyage. The observer reported competition for access to feed troughs increased later in the
voyage with pen hierarchy becoming obvious and incidents of trampling observed. This
resulted in shy feeders in larger pens not being able to adequately access feed, sometimes
for several feeds at a time. Very limited feed was available from late on Day 19 as the
fodder supplies had been almost exhausted. It was the observer ’s understanding that some
cattle were not fed at all during the day of discharge as no fodder remained on board,
meaning ASEL standard 5.5 could not be met” (IO 55).
In some instances, food deprivation occurred on consecutive voyages of the same ves-
sel. On the MV Yangtze Fortune, in mid-November to early December 2019 with
4165 cattle
on board (IO 201), “Feeding rates did not meet ASEL requirements. For the first
7 days
of
the voyage, reported feeding rates were on average 1.0–1.5 kg of feed per head below ASEL
requirements. Most feed troughs were observed to be licked clean by the cattle, with some
animals jostling and competing for pellets”. This summary concluded, “The department
has addressed a breach of procedures with the exporter to ensure cattle are fed to their
requirements”. However, on the same vessel with a different exporter just a few weeks
later in December 2019, “feeding rates did not meet ASEL requirements for cattle in the
first 6 days of the voyage. Despite a consignment of pregnant cattle being provided chaff
twice daily, feed provided to this group was below ASEL requirements for the duration of
the voyage. The observer reported that 95% of feed troughs were licked clean by the cattle
within 1–2 h after feeding. A considerable clamour for access to feed was witnessed by the
observer during feeding times” (IO 210). Behavioural indicators such as licking troughs
clean and competition to access limited food resources, are indicative of hunger.
Food deprivation was not only due to insufficient food loaded or being fed. There
were also indirect causes of hunger, such as factors that limited animals’ access to food
including: limited mobility (e.g., in association with lameness or other injury and illness,
poor pen conditions), competition (e.g., with inadequate space allowances or mixing classes
Animals 2021,11, 2862 5 of 22
of cattle or both) and suppressed appetite (e.g., associated with heat stress and rough seas).
OIE guidelines [
16
] for sea transport (Chapter 7.2) state that “The feeding and watering
system should be designed to permit adequate access to feed and water appropriate to
the species, size and weight of the animals”. Yet on one voyage of 5012 cattle transported
on the MV Ocean Swagman, “Lower enclosed decks were observed to be too deep for the
number of cattle in these pens, not all cattle were able to access sufficient fodder”. It was
observed that, “on average, 14 cattle per pen (approximately 50%) were waiting their turn
to feed. When they finally got to the trough there was usually nothing left” (IO 94). The IO
summary states that staff responded to this issue by “removing skinny and weak cattle”.
Another IO summary provides reasons why the “skinny and weak cattle” should not have
been mixed with other cattle, “cattle of a wide range of body weight were penned together,
which can lead to stocking density irregularities, and smaller animals potentially missing
out on trough access” (IO 166).
“The Five Freedoms” including “freedom from hunger” are regarded as guiding
principles of animal welfare in the OIE Terrestrial Code [
16
,
19
]. Reflecting this, the OIE
Guidelines state that “Animals should have access to sufficient feed and water, suited to
the animals’ age and needs, to maintain normal health and productivity and to prevent
prolonged hunger, thirst, malnutrition or dehydration.” More contemporary models of
animal welfare such as the “Five Domains”, have expanded on “The Five Freedoms” by
highlighting hunger as a negative affective state (subjective experience) [
19
]. Despite this,
few IO summaries which recorded food supply issues acknowledged that issues of food
supply contributed to poor animal welfare or were contrary to OIE recommendations. In
one exception, “The observer noted the health and welfare of the cattle was adversely
affected during the voyage” (IO 55).
Appropriate planning for food availability is detailed in the OIE Guidelines for Trans-
port of Animals by Sea Chapter 7.2 [
16
]. The IO summaries often stated that failure to
provide sufficient food was “outside the control of the exporter”. The voyage of the MV
Shorthorn Express (IO 55), is an example of this. The IO on that voyage described misman-
agement of feed supplies: “The method used for estimating remaining pelleted feed in
the silos was considered unreliable
. . .
The CO [Chief Officer] and livestock crew did not
manage feed distribution well. Despite concern from Day 2 that feed supply might need to
be rationed
. . .
fodder was not managed conservatively”. The food shortage was noted on
Day 2 but this vessel did not either turn back or make arrangements to load extra food at
another port in Australia. Likewise, when the vessel diverted on Day 16 to take additional
fuel and water no attempt to load extra feed was documented. Despite these observations
and the OIE guidelines [
16
], the failure to provide adequate food was deemed outside the
control of the exporter by the IO (or DAWR).
It is evident from the IO Summaries that multiple instances of food deprivation oc-
curred due to insufficient food contingencies in ASEL. The DAWR assessment of the impact
of the food deprivation appeared inconsistent with contemporary welfare standards [
19
]
or OIE guidelines [16].
2.2. Thirst
Water supply issues were described in 16/37 (43%) of the IO summaries (
Table 1
).
Water issues ranged from insecure water troughs to failure of the onboard reverse os-
mosis (RO) water supply system. The OIE guidelines [
16
] mandate adequate water and
appropriate design of water systems to permit adequate access and minimise soiling.
Typically, there are two different types of onboard water delivery systems: troughs
(hung on railings inside or outside pens) or automatic nose bowls where the animals push
a lever or button with their nose to access water. Several IO summaries describe ongoing
issues with poorly secured water troughs knocked off railings (e.g., IO 12, 111 and 152 on
the MV Yangtze Fortune) potentially limiting access to sufficient water and wetting pens
indicating design contrary to OIE guidelines [
16
]. Other voyages report animals having
initial difficulty operating nose bowls (e.g., IO 17) or sometimes taking “a day or two to
Animals 2021,11, 2862 6 of 22
adjust to the delivery system” (IO 23) potentially limiting water access during this time.
Where trough filling was via a hose and float system, issues included broken or incorrectly
set floats (e.g., IO 92, 94, 201), leaking hoses or leaking water supply system (e.g., IO 55, 12,
59, 92, 210 with the latter four on the one ship, MV Yangtze Fortune) and faulty isolating
switches (e.g., IO 12). In some cases, these issues resulted in troughs being empty and cattle
without ad libitum access to drinking water (e.g., IO 94) and/or resulting in pen soiling.
In some cases, water quality was identified as an issue. Water was described as dis-
coloured (e.g., IO 18) and either not clean or contaminated with faeces (
e.g., IO 18, 55, 56, 92
).
These observations are noteworthy because contamination (
e.g., by dust, feed, urine, faeces
),
foul odours or tastes may discourage animals from drinking [
20
] and contaminated water
may also be a source of pathogens [21].
IO summaries describe cattle being left without access to any drinking water for
variable periods. Details are often scant but instances of “dry water bowls” (IO 136) are
described. Water supply failures also include instances where “a segment of the water
supply became non-operational” (IO 22). On a voyage of the MV Yangtze Harmony carrying
4975 cattle (IO 56), “The observer noted that ad lib supply of water to the upper decks was
not continuous on days 5, 7, 10, 11, 12, 13, 15, 17 and 18 as evidenced by the presence of
empty water troughs. Remedial action by the crew was undertaken on each occasion to
resolve the issue and supply water. After long outages, the cattle were queuing to drink”.
Water deprivation often occurred on the same voyages as food deprivation. On a July
2018 voyage of the MV Yangtze Fortune where animals were provided with insufficient
feed, “it was noted that there were instances of short cuts resulting in issues such as water
troughs being empty for more than two hours” (IO 12). During the December 2018 voyage
on the MV Shorthorn Express where cattle were trampling each other for access to limited
feed (IO 55), animals suffered simultaneous hunger, heat stress and insufficient water.
On this voyage, the RO unit broke down and despite increased water requirements due
to increasing wet bulb temperatures, “From day 5 of the (22 day) voyage, there were
periods when the cattle did not have access to ad lib water because the vessel’s water-
generation capability was insufficient to meet demand” (IO 55). Food and water deprivation
are associated with stress and functional impairment especially when combined with
transportation [22].
The ASEL does not specify detailed water requirements, only general provisions,
with Section 5.5 stating, “All livestock on the vessel must have access to adequate water
of a quality to maintain good health”. Cattle need to consume large volumes of water
to meet maintenance needs. Water deprivation impacts on animal welfare, as it can
hinder biological functioning, has been associated with morbidity and, in cases of extreme
deprivation, mortality. It is also likely to be associated with a negative affective experience
in farm animals (e.g., in humans referred to as thirst) [
23
]. The volume of water required by
cattle increases further under conditions of increased temperature and humidity, conditions
which occur on every voyage to China, as all voyages cross the equator. It is often cited
that ruminants can endure longer periods of water deprivation compared to monogastric
animals. In the initial stages of water deprivation, fluid may be drawn from the rumen
to maintain fluid balance [
24
]. However, it should be noted that if given the opportunity
to exercise choice with water freely available, cattle will drink more frequently, usually
2–5 times
per day [
25
]. The role of the rumen as a fluid “store” also assumes that the animals
are well fed and hydrated but cattle in the live export industry are exposed to several
periods of enforced feed and water deprivation including during mustering, yarding and
prior to and during road transport. Hormones released as part of the stress response
(including the response to handling, novel environments and transport) can also have a
diuretic effect that contributes to dehydration in sheep and possibly other ruminants [
26
].
Furthermore, although an animal possesses adaptations to survive brief periods of low
water availability this does not imply that the animal’s welfare is not compromised prior
to reaching their survival limits [
23
]. It is important to note that under some shipboard
Animals 2021,11, 2862 7 of 22
conditions, even short periods of water deprivation on a ship can be fatal for vulnerable
animals (Lynn Simpson pers comm).
2.3. Exposure to Extreme Temperatures
The OIE guidelines [
16
] support freedom from thermal discomfort as a welfare prin-
ciple and state that “In some extreme conditions of heat or cold, animals should not be
transported at all.” Cattle exported from Australia to China by sea are exposed to extreme
temperatures and extreme temperature variations particularly when they are transported
across the equatorial zone and during seasons of greatest temperature variation (from sum-
mer to winter or winter to summer). Exposure to extreme temperatures (
hot, cold or both
)
was described in 19/37 (51%) of the IO summaries reviewed (Table 1). Heat stress was
specifically noted in 14/37 (38%) IO summaries and was likely in another 10/37 (27%).
A dry bulb temperature (DBT) of 2
C or less was recorded on 5/37 (14%) voyages with
unspecified cold temperatures recorded in other summaries. In addition, some voyages
had extreme temperature variation from departure to unloading. Temperature records
were routinely incomplete or absent (see Section 3Independent Observer Summary Lim-
itations) but the recorded DBT differences from maximum to minimum across voyages
with adequate data ranged from 10–42
C with 6/37 (16%) having differences between
minimum and maximum temperatures of 28–42 C DBT.
In addition to thermal discomfort, exposure to extreme temperatures can result in ani-
mals exceeding their tolerance zone meaning that homeothermy (maintenance of constant
body temperature irrespective of ambient temperature), can no longer be maintained [
27
].
If unable to maintain homeothermy, animals can suffer hypothermia or hyperthermia, heat-
or cold- related illness and associated negative affective states (e.g., discomfort or distress).
Without intervention, morbidity or mortality may result from hypothermia or hyperther-
mia. Indeed, the summary of IO 12 states that “Mortalities attributed to heat stress occurred
in line with the increase and subsequent maintenance of temperature and humidity”.
As ambient temperature rises, heat is initially dissipated primarily by passive mech-
anisms (sensible heat loss) such as radiation, conduction and convection [
28
]. However,
when ambient temperatures approach body surface temperatures, there is recruitment of
evaporative processes, primarily panting [
28
]. Cattle can also sweat but Bos taurus cattle,
the cattle most likely to be exported to China, have much less ability to lose heat through
sweating compared to Bos indicus cattle [
29
]. Adaptations to high temperatures such as
the development of a sleek, reflective coat and a reduction in fat cover take many weeks
to develop so it is not physically or physiologically possible for animals to adapt to the
temperature extremes encountered during a two-to-three-week journey [17].
Conditions aboard live export ships limit thermoregulatory mechanisms and put
animals at a high risk of heat stress [
28
]. Live export vessels crossing the equatorial zone
pose a particular risk for southern Bos taurus cattle, which have increased heat stress risk
(lower heat stress threshold) and are often not acclimatised. The best predictor of heat
stress is wet bulb temperature (WBT). Wet bulb temperature is a measure calculated from
ambient DBT and relative humidity. Cattle are unable to maintain normothermia when
they encounter high ambient WBTs above their heat stress threshold, the temperature
at which they cannot thermoregulate [
28
]. An animal’s ability to thermoregulate can be
affected by factors such as breed, body condition, acclimatisation and health status. Heavy
bulls are known to be high risk and were observed to be “the most heat affected” on a
voyage where “the average deck wet bulb temperatures ranged from 25–29
C” (IO 205).
The OIE guidelines [
16
] note that very large animals may be at particular risk of suffering
poor welfare during transport.
The temperature–humidity index (THI) has been used as an attempt to weight mea-
sures such as DBT and WBT for comparison with measured animal outcomes [
28
,
30
]. Due
to the paucity of temperature and humidity information in the summaries, the THI could
only be calculated for a few of the voyages. For example, temperatures up to 31
C and
85% humidity were recorded on a May 2019 voyage of the MV Ocean Swagman carrying
Animals 2021,11, 2862 8 of 22
5355 cattle (IO 119). At 85% humidity and DBT 30
C, THI is over 84, which is considered
emergency level. Increased THI at a rate of
15 to 20 per day above THI 84 for two to three
days can be fatal in vulnerable cattle. On an April 2019 voyage of the MV Rahmeh carrying
5847 cattle (IO 109), DBTs of 30–33
C with 80–85% relative humidity were recorded. As
such it is likely that the THI was 90 or more; 90 is considered crisis level. Crisis level
occurred for 3234 cattle aboard the MV Shorthorn Express in December 2018/January 2019
on multiple days (IO 55). Cattle were simultaneously exposed to water deprivation on that
voyage and photographs show dairy cattle in heat stress with head extended, held low
and with open-mouthed respiration (IO 55 p6 Photograph titled “Day 6 Cattle showing
heat stress”).
Overnight respite from hot conditions is an essential element of recovery from heat
stress [
28
] but little to no respite is available for live cattle exported across the equatorial
zone. For example, on a December 2019 voyage on the MV Galloway Express carrying
1812 cattle
(IO 173), “high equatorial temperatures were experienced for much of the
day and night, providing little or no period of respite for the cattle
. . .
The daily deck
temperatures recorded in the daily report around the equatorial region when the signs
of heat stress were observed were 30–33
C dry bulb, 27–28
C wet bulb and 72–78%
humidity”. Ambient weather conditions are not the sole cause of heat stress. Other
shipboard factors such as additional heat sources (e.g., ship’s engine, sun-heated metal),
faecal contamination of the skin and coat (faecal jacket) preventing heat loss from the skin,
inability to move away from other animals or seek shade or breeze, high pen humidity and
poor ventilation contribute (e.g., IO 94, 210). Management strategies to help address heat
stress including washing decks (e.g., IO 173), hosing of the cattle (e.g., IO 94) and reducing
stocking density in hot pens (e.g., IO 173) are likely to have only a limited or transient effect
in alleviating heat stress when the WBTs exceed the heat stress threshold.
The IO summaries describe animals suffering from heat stress showing signs such as
increased respiratory rates (e.g., IO 173, 201), “panting with open mouths, drooling with
tongues out over the water troughs” (IO 18), “serous nasal discharge, a soft wet cough,
and restless or irritable behaviours” (IO 185), increased water consumption (e.g., IO 55),
suppressed appetite (e.g., IO 136, 173) and lying prone (e.g., IO 201). The IO summary
173 states that, “signs of heat stress included increased respiratory rate, necks extended,
open mouth breathing, tongues protruding [depicted in IO 173 p4 Photograph titled “Day
8 Cattle in pen—heat stress deck 4”], cattle congregating usually under the best ventilated
area, lethargic demeanour and suppressed appetite”. The High Mortality Voyage Report
(HMR) for a voyage of the MV Yangtze Fortune carrying 2192 cattle in July 2018 (IO 12)
describes, “At the worst, up to 1% of animals on the vessel were gasping” (HMR 74). These
signs are consistent with a definition of severe heat stress [
30
]. It is noteworthy that whilst
heat stress was identified as a primary or secondary risk factor for the reportable mortality
on this voyage, the “representative photographs” included showed comfortable cattle with
“no issues identified” (IO 12).
Less attention has been given to cold stress in livestock exported from Australia.
However, given that animals were exposed to temperatures as low as
10
C (below their
tolerance zone), it is likely that they suffered from hypothermia and cold stress. Experi-
mental studies reveal that cattle welfare is compromised by cold exposure as indicated by
increased stress hormone measures and diminished immune function [
31
]. The long-term
repercussions of exposure to extreme cold are not revealed in the IO summaries as the
cold temperatures only occur at the end of the voyages. End-destination feedlot welfare
outcomes are out of the scope of IO summaries.
Even less attention has been given to assessing effects of extreme temperature vari-
ations. Cattle exported from Australia to China by sea can be exposed to extreme tem-
perature variations as they are transported from summer to winter as well as winter to
summer conditions across the equator. For example, during a December 2018/January
2019 voyage of the Yangtze Fortune, 2405 cattle experienced a temperature variation of
42 C
DBT ranging from 32
C at the equator to
10
C on arrival at Rongcheng (IO 59). The IO
Animals 2021,11, 2862 9 of 22
summary makes no comment about how the animals coped with the cold, just that the
animals did not get heat stress, “No signs of heat stress were detected with the favourable
weather conditions and northern winter after crossing the Equator” (IO 59). One IO did,
however, detail the health and welfare aspects of the extreme temperature variations in a
November /December 2019 voyage with 5606 breeder cattle (IO 40): “Humidity reached
a maximum of 86 per cent (in conjunction with 32 degrees Celsius) on Day 6. The initial
pen wash occurred on day 10 and improved the conditions for the cattle. The temperatures
and humidity remained similar (without any relief at night) until day 15 of the voyage.
After day 15 of the voyage, the temperature decreased on a daily basis. By day 17, the
temperature on the deck was around zero. The heat/humidity and subsequent cold tem-
peratures appeared to adversely affect the health of some of the cattle, particularly those in
poorer condition.”
2.4. Poor Pen Conditions: Space and Bedding
As a general principle of livestock production, the OIE guidelines [
16
] state “The
physical environment should allow comfortable resting, safe and comfortable movement
including normal postural changes, and the opportunity to perform types of natural
behaviour”. For transport at sea, the OIE Guidelines stipulate “When animals lie down,
there should be enough space for every animal to adopt a normal lying posture.”
Poor pen conditions (such as wet, sloppy pad or inadequate bedding material) and
insufficient space (with overcrowding and/or not all animals able to lie down simulta-
neously even with abnormal posture) were described and/or depicted in photographs
in 30/37 (81%) of the IO summaries reviewed (Table 1). There was insufficient bedding
under ASEL documented or evident on photographic review on 15/37 (41%) voyages;
true prevalence could not be established as minimal details and few photographs were
provided. In addition, 29/37 (78%) of IO reports describe wet, sloppy pad conditions with
the accumulation of urine and faeces. In one IO Summary, the wet conditions were only
reported in one pen on one occasion (IO 48), so this voyage was not included in the total.
2.4.1. Space
The Australian Animal Welfare Standards and Guidelines for Cattle states that “suffi-
cient space to stand, lie and stretch their limbs and perform normal patterns of behaviour”
is essential to meet welfare requirements [
32
]. Yet, the space afforded to live export cattle
in ASEL is insufficient for all animals in a pen to simultaneously perform normal patterns
of behaviour. ASEL 4.1.2 Table A4.1.1 gives the minimum pen area per head for cattle on
voyages of 10 days or more [
18
]. These space allowances have been criticised for being set
without reference to animal welfare parameters [
28
]. For example, according to the ASEL
Table A4.1.1, cattle weighing 550 kg must be afforded a minimum of 1.86 m
2
. This space
allocation is less than the minimum space to allow basic postures such as lying down and
rising [
33
,
34
]. Typically, Friesians require a space approximately
2.4 m long ×1.2 m wide
(2.88 m2) with a further 0.6 m forward space to allow them to move from a lying to stand-
ing position [
35
]. An Australian Commonwealth Scientific and Industrial Organisation
research publication on dairy cow comfort states that the cow’s physical environment
should allow cows to have their 12 to 14 h rest each day undisturbed by other stock and in
comfortable stalls or other resting spaces [36].
A load plan, which designates the number of animals per pen, is part of the doc-
umentation that exporters must provide to DAWR and the Australian Maritime Safety
Authority (AMSA). Based on the IO summaries, the load plan is either not followed or
not suitable to ensure appropriate pen space. In eight summaries, failure to follow the
load plan was noted. This sometimes resulted in overstocking and in other cases was a
result of adjustments to improve space allowances. For example, at the loading of the MV
Shorthorn Express in November 2019, “the cattle were not loaded strictly in accordance with
the load plan. Adjustments were made to the stocking density in some pens early in the
voyage, however, some pens remained overstocked throughout the voyage” (
IO 55
). Yet
Animals 2021,11, 2862 10 of 22
on another voyage, “pens were loaded according to visual capacity not strictly according
to the load plan. This was a more accurate way of providing a good stocking density”
(IO 19). In another 13 summaries, animals were loaded in accordance with the load plan,
but adjustments had to be made to ensure appropriate space allowances. The accuracy
of load plans is thus questionable and mainly appeared to be followed on voyages that
were lightly stocked. There was one instance of an inaccurate load plan, an apparent
breach of the ASEL, at the loading of the MV Yangzte Fortune at Fremantle in June 2019,
“The observer assessed the load plan stocking density and found the plan had referred to
the incorrect table used to calculate stocking density in the Australian Standards for the
Export of Livestock (
Version 2.3
) 2011 (ASEL)” (IO 152). This error had not been detected
by DAWR.
Limited space for at least some pens was a common issue throughout the voyages.
Contrary to OIE Guidelines, the ASEL does not allow for all animals to comfortably lie
down and space allowances were often deemed adequate in the IO summaries if more
than 50% of animals could lie down simultaneously. Other summaries stated that all or
almost all cattle could lie down simultaneously. Adequate space allowance was difficult to
assess from the IO summaries due to the paucity of specific details and the limited number
of photographs provided. Crowding (not all individuals able to lie down simultaneously
or only able to lie down with substantial overlap of heads and bodies) can be seen in
photographs in some of the IO summaries (e.g., IO 23, 26, 40, 92). Overstocking throughout
the voyage was only noted specifically in one report, “some pens remained overstocked
throughout the voyage” (IO 55). On these long-haul journeys of two to three weeks,
all animals should be afforded sufficient space to lie down simultaneously with normal
postures. Given the ASEL space allowances are inadequate and that breaches of ASEL
space allocations were commonly reported, at least in the initial stages of voyages, it is
reasonable to hypothesize that many cattle on voyages to China are forced to endure
cramped conditions for part, or all, of the voyage and that space allowances rarely meet
OIE guidelines [16].
2.4.2. Bedding
Cattle on live export voyages from Australia to China are consistently exposed to
poor pen conditions that compromise animal welfare. IO summaries and accompanying
photographs depict poor pen conditions including insufficient bedding and accumulation
of urine and faecal material with a wet, sloppy pad. In addition, it was sometimes noted
that the loaded bedding was only placed in pens near the destination port.
Clean, dry, substrate of appropriate depth is a basic requirement for cattle welfare.
Quality and quantity of bedding affects animal welfare via its effects on physical and
thermal comfort, air quality (e.g., ammonia levels), essential behaviours (including lying,
walking, ruminating) and risk of trauma (e.g., abrasions, lameness, slipping) and infec-
tious disease (e.g., dermatitis, pink eye, pneumonia) [
37
]. Cattle prefer a soft place to lie
down [
38
] and prefer clean and dry bedding on ship pen floors while in transport [
37
].
Failure to provide a clean, dry, soft place for cattle to lie down is associated with poor
animal welfare including skin lesions, digital dermatitis and lameness [
39
,
40
]. The OIE
animal welfare recommendations state that, “bedding should be maintained to provide
cattle with a dry and comfortable place in which to live” and “the physical environment
including substrate (walking surface, resting surface etc.) should be suitable to the species
and breed so as to minimise the risk of injury and transmission of parasites” [16].
The ASEL S4.15 Appendix 4.3.1 (1) states that “cattle on voyages of ten days or more
must be provided with sawdust, rice hulls or similar material at a rate of at least 7 t or
25 m
3
for every 1000 m
2
of pen space” [
18
]. A submission by an experienced shipboard
veterinarian to a review of ASEL in 2012 indicated that this amount of bedding is trivial [
41
].
Cattle on bare concrete are known to lie down less frequently, display abnormal movements
in transition from lying to standing and have more hoof claw lesions [38].
Animals 2021,11, 2862 11 of 22
Notwithstanding that ASEL requirements for bedding are minimal and appear con-
trary to OIE Guidelines, some IO summaries detail further deprivation of substrate:
1.
On a 23-day voyage of the MV Jawan during August/September 2018 carrying
6226 cattle
, “No sawdust was applied after wash down on day 9 or on second wash
down on day 12 and 13 as sawdust reserved for later in the voyage
. . .
this contributed
to wet and sloppy conditions later on in the voyage.” (IO 18).
2.
On a 20-day voyage of the MV Ocean Swagman carrying 6841 cattle, “The first wash
was on Day 8 and 9. A light cover of sawdust was then applied to the pens. The
second washing was done..a few days from arrival into China. A thick cover of
sawdust was spread across the pens.” (IO 19).
3.
On a 22-day voyage of the MV Ocean Ute, 5606 breeder cattle were not provided any
bedding until close to discharge, “the pad condition ranged from soft to very sloppy
. . .
Bedding was loaded on the vessel in accordance with the ASEL requirements.
Some bedding was spread on the ramps and alleys, however was not spread in pens
at loading. The bedding was used following the last wash down closer to unloading”
(IO 40).
Some photographs accompanying the IO summaries show cattle on hard, bare floors
without any substrate (e.g., IO 152 Day 7 (page 4), IO 162 Day 10 (page 4), IO 198 Day 9
(page 4)) and all have the description “no issues identified” despite the OIE guidelines [
16
].
The majority (28/37, 76%) of IO summaries describe wet, sloppy pad conditions with
the accumulation of urine and faeces. There was no information available for four voyages
so only five voyages were confirmed to have dry or mainly dry pads. Most summaries
described conditions as per IO 40: “Early in the voyage, the pad condition appeared to
be comfortable but particularly the lower decks became wet and very sloppy from day
eight as the temperature and humidity increased.” Cattle were also exposed to washdown
overflow with water, faeces and urine from decks above (e.g., IO 55, 210, including into
hospital pens (e.g., IO 55) contrary to OIE guidelines (“Vessels should be designed so that
the faeces or urine from animals on upper levels do not soil animals on lower levels, or
their feed or water”) [
16
]. Photographs labelled as “no issues identified” often show cattle
heavily coated with faeces (e.g., IO 144; p4 Days 8, 15 and 18).
Pens were routinely only washed down once or twice despite a median voyage
duration of 20 days. On a 14-day voyage of the MV Gloucester Express carrying 1952 cattle in
September/October 2018, pens were never washed and “The pad thickness developed over
the voyage to a central depth on [sic] 5–10 cm with a much thicker piling up effect under the
gates, into corners and along the walls. The texture was initially crumbly but progressed
to variably tacky to sloppy mud by Day 7” (IO 22). On a December 2018/January 2019
voyage of the MV Shorthorn Express carrying 3234 cattle, “Poor maintenance, for example,
not attending to leaks in the water supply system or broken nose bowls, contributed to a
20 cm deep build-up of a boggy mixture of fodder, chaff and manure in most alleyways
and pens” (IO 55). This is contrary to the OIE guidelines [
16
] which state “The feeding and
watering system should be designed to . . . minimise soiling of pens”.
Cattle may be reluctant to lie down on a wet, sloppy pad with consequences for
rumination, joint health and overall fatigue. For example, a former live export veterinarian
described that “Cattle tend to lie down immediately [after] the floor is clean or bedding
is supplied, indicative of fatigue and reticence to lie on dirty decks” [
41
]. Furthermore,
wet, sloppy pad conditions are associated with poor hygiene, impaired mobility, poor air
quality, risk of heat stress and hoof conditions that corrode the hoof and cause painful,
debilitating disease.
A 2017 industry report on “Management of Bedding during the Livestock Export
Process” states that ship stockpersons and veterinarians recommended that more bedding
would improve the comfort and welfare of cattle [
37
]. There is acknowledgement in the
industry that “addressing the welfare issues through bedding management will have
a positive impact on the animal welfare image of the industry, assisting its long-term
viability” [
37
]. However, the report also stated that “Based on current mortality rates and
Animals 2021,11, 2862 12 of 22
estimates of poor health attributable to bedding management, the cost of bedding is not
likely to be recouped by a reduction in mortality rates” [37].
2.5. Health issues
All the IO summaries reviewed mention health issues. Cattle suffered from a number
of significant infectious and non-infectious health issues including ocular (e.g., kerato-
conjunctivitis), respiratory (e.g., pneumonia), musculoskeletal (e.g., lameness), metabolic
(e.g., ketosis), dermatologic (e.g., ringworm), enteric (e.g., bloat, chronic diarrhoea) and
systemic (e.g., septicaemia) diseases. A total of 292 cattle were reported to have died on
the 37 voyages with median mortality 0.14% (0–1.51%). Low mortality is often equated
with good animal welfare by DAWR and industry but these IO summaries provide strong
evidence that this interpretation is flawed. For example, extreme suffering due to food
deprivation, water deprivation, heat stress and poor pen conditions was documented in
IO 55
, yet there was a relatively low mortality. “The observer noted the health and welfare
of the cattle was adversely affected during the voyage” (IO 55).
Cattle suffering from lameness are reported in practically all IO summaries. Lameness
is associated with pain [
42
] and reportedly one the most common causes of morbidity
and mortality in live export [
43
,
44
]. In the live export industry, poor handling, abrasive
surfaces, insufficient bedding, rough seas and prolonged contact with slurry predisposes
to joint and hoof injury and infection [
41
]. A former live export veterinarian described
lameness as a major cause of morbidity and mortality during voyages particularly due to
“hoof deck syndrome” where “abrasive deck surfaces
. . .
in combination with constantly
wet, softened hooves (from faecal pad), concurrent illness and/or injured/heavy animals
often leads to varying degrees of direct tissue damage
. . .
painful skin excoriations and/or
hoof damage
. . .
joint and bone exposure and secondary infections. The most severe
of these injuries discourages animals from rising normally due to excessive discomfort
and pain. Not rising inhibits or stops feeding and drinking and results in animals lying
in urine and faeces. Apart from malnutrition and dehydration, persistent recumbency
leads to pressure sores, cellulitis and in some cases tracking urinary infections” [
41
]. These
observations are consistent with the IO summaries, the majority of which mention lameness
as a cause of ill health, e.g., “A significant number of cattle became lame during the voyage.
The stockperson treated the lame cattle with varying success. Some of the lame cattle
were unable to rise or seemed to develop Bovine Respiratory Disease (BRD). There were
47 mortalities
(mortality rate was 0.84 per cent—reportable level is 1.0 per cent). The main
causes of the mortalities were mainly lame cattle that were unable to rise and BRD” (
IO 40
).
A high mortality voyage report (HMR 79 pertaining to IO 136,) stated “28 cattle [were]
treated throughout the voyage, predominantly for pneumonia or lameness”. Yet another
report describes “The prolonged liquid pad conditions caused lameness in a significant
number of animals” (IO 111).
Bovine respiratory disease (BRD) is a major cause of cattle mortality in live export
with post mortem evidence of infectious lung disease in two thirds of the necropsy samples
(
n= 130/195
) collected from 20 long-haul live export voyages [
43
,
44
]. It is thus not sur-
prising that the majority of the IO summaries noted BRD. On at least one voyage, “There
were a high number of cattle that were treated early in the voyage for nasal discharge /
respiratory disease. The treatment options became limited after several days due to ex-
haustion of the appropriate antibiotic treatment” (IO 60). There was no information in the
IO summary as to how BRD was managed once the antibiotic supply was exhausted. The
ASEL only requires “30 cattle doses” to be available on-board for BRD antibiotic treatments
despite stating in S5.2 “Any livestock for export identified after loading as being sick or
injured must: (a) be given immediate treatment” [
18
]. The OIE guidelines [
16
] state that
there “must be provision of appropriate equipment and medication for the numbers and
species carried.”
Almost half the IO summaries mention ocular disease particularly bovine keratocon-
junctivitis (pink-eye). Mechanical ventilation, poor air quality and dust increase the risk of
Animals 2021,11, 2862 13 of 22
ocular disease such as pink-eye. Pink-eye is a welfare issue as it can result in pain, irritation
and blindness. It can also reduce productivity if animals are unable to get to the feed
troughs or fend off other animals [17].
Several IO summaries mention animals suffering from ill-thrift (failure to thrive)
(e.g., IO 109, 136, 179, 205, 210) and 18/37 (49%) summaries mention shy-feeders. There are
accounts of metabolic diseases such as ketosis (e.g., IO 109, 210) and metabolic acidosis
(
e.g., IO 136
). Gastrointestinal issues included bloat (e.g., IO 56, 109, 111, 136, 205, 210),
enteritis (e.g., IO 18, 136, 162, 195), bovine traumatic reticuloperitonitis (perforation of
the reticulum after ingestion of sharp metal object) (e.g., IO18) and intestinal obstruc-
tion (
e.g., IO 136
). Some of these conditions may have been influenced by management
factors such as poor pen conditions and feed restriction. Incidents of suspected sepsis
(
e.g., IO 94, 119
) could potentially be related to poor hygiene, superimposed on stress and
compromised immune function.
Animals were at risk of injury due to various causes including an apparent breach of
ASEL where, “A significant number of cattle had horns that were blunt, but were longer
than the 12 cm as required under ASEL. In other cases, horns were shorter than 12 cm,
but not blunt or tipped. Some cattle with untipped horns displayed aggressive attitude to
their pen companions, with the potential for trauma to occur although no instances were
observed” (IO 185). Painful traumatic injuries are documented including fractures resulting
in euthanasia (e.g., IO 40, 94, 111, 195; IO 110 also lists euthanasia due to “orthopaedic
injury”). There are also reports of heads being stuck in rails (e.g., IO 106, 198) sometimes
resulting in death (IO 198).
In addition to animal welfare risks, diseases in live export cattle pose a health risk
to personnel. For example, dermatophytosis (ringworm) was documented in some IO
summaries (e.g., IO 56, 201, 210). Risk factors for ringworm include stress, diet, poor
environmental conditions (heat, humidity and overcrowding) and transport [
45
]. An
industry report from 2000 [
46
] states, “to date, all large consignments of dairy cattle
exported to China have had some cases of ringworm develop during the pre-export
quarantine period. For cattle exported by sea, the disease also spreads on the ship
. . .
we
must be mindful that ringworm is a zoonotic disease, and that people handling affected
cattle are at risk” [
46
]. Ringworm is often considered a trivial zoonosis in first world
countries but may not be trivial for sailors at sea for long periods with constant moist
conditions or stock handlers at discharge who may have little opportunity to treat and
manage ringworm effectively.
Animals were sometimes loaded with pre-existing health or physical conditions which
would not have met ASEL criteria or OIE Guidelines, e.g., emaciated cattle in photographs
(IO 195).
There are many risk factors inherent to live export that contribute to the incidence of
health issues including transport and handling, mixing of animals, artificial ventilation
and poor air quality, poor hygiene, exposure to high ambient temperatures, inadequate
bedding substrate, food and water deprivation, prolonged exposure to wet pad conditions,
rough seas and chronic stress. The conditions described in the IO summaries are consistent
with previous studies of morbidity and mortality in the live export industry [43,44].
Most health issues recorded would be expected to result in discomfort, pain, impaired
physical function (e.g., mobility, breathing, vision), compromised physiological function
(e.g., acid base balance, thermoregulation, digestion) and/or negative affective states such
as fear and distress.
2.6. Absence of Veterinarians
An accredited stockperson is mandatory on all live export voyages but a veterinarian
is not [
18
]. A key recommendation of the 2003 Keniry Livestock Export Review was that “A
registered and suitably qualified and trained veterinarian should be on board all livestock
export ships where the journey would take over 10 days” [
2
]. A shipboard veterinarian
(AAV) is currently required on all live export ships going to or through the Middle East [
47
].
Animals 2021,11, 2862 14 of 22
Voyages to the Middle East are similar in duration to the voyages to China yet there is no
mandatory requirement for a veterinarian to accompany voyages to China. Nearly 60%
of voyages (22/37) to China had no shipboard veterinarian (Table 1); the median voyage
duration for the AAV-accompanied voyages was 20 days (14–24 days). The reasons for an
AAV being appointed are not provided in the IO summaries and not available in the public
domain. It is likely that such information would be “commercial in-confidence”.
There was no IO criticism of appropriate drug handling or treatments on any voyage
with an AAV present. This was not the case for voyages without AAVs. On one such
voyage with one experienced stockperson and no AAV, the IO reported unhygienic drug
storage (IO 55). However, on a voyage with no AAV and two accredited stockpersons
on board it was reported that “The livestock medicine room was unhygienic with dirty
floors, cupboards and fridge. Medicines were stored at temperatures above the label
recommendations. Injection guns had broken dirty needles. Under dosing with antibiotics
and poor administration technique of drugs was observed” (IO 18). The IO on this voyage
was also critical that euthanasia was not performed in a timely fashion in two animals
which subsequently died (IO 18). Antibiotic under-dosing poses risks to the animals and is
contrary to the Australian Government’s stated position on antimicrobial resistance [48].
When an AAV was present, it was noted that there were a large number of treatments
administered, e.g., over 500 treatments (IO 59), 400 treatments (IO 162) and 121 treatments
(IO 179). The number of treatments administered on vessels without an AAV were often
not reported in the IO summaries but only one voyage without an AAV recorded a similar
number of treatments (IO 111). Possible explanations are that the consignments with high
numbers of treatments were at particular risk thus necessitating assignment of an AAV,
or that animals suffering from conditions requiring treatment were identified and treated
by AAVs but were not identified and/or did not receive treatment on voyages without
an AAV. The inconsistent and incomplete nature of the IO summaries makes any accurate
conclusion impossible. It was noted that voyages without an AAV were also more likely to
have no diagnosis recorded for mortalities.
Historically, Australian-accredited stockpersons are required to undergo a 4-day
training course for accreditation. They are not required to have any specific qualifications in
animal health or pharmacology. It is likely that inadequate training results in inappropriate
drug storage and treatment administration. An accredited stock person would also not
have sufficient training in pathology to make accurate gross pathology assessments at
necropsy. Ensuring an AAV on all long-haul voyages would rectify this deficiency. The
cessation of the IO Program in March 2020 [
49
] and the downgrading of stockperson
accreditation in April 2020 to allow any stockperson that the industry deems experienced,
regardless of accreditation [
50
], could reduce the capacity to maintain acceptable animal
welfare standards on these voyages.
2.7. Rough Seas
Rough seas were specifically noted in 7/37 IO summaries (
IO 18, 40, 55, 59, 109, 179, 205
)
and two HMR reports (HMR 74 and HMR 79 which pertained to IO 12 and IO 136 respec-
tively). Two voyages were considered likely to have rough seas given that in one “waves
[were] washing over decks” (IO 19) and in another, flooding of pens was described as a
result of “unsteady sea conditions” (IO 201). It is thus estimated that at least 11/37 (30%)
voyages experienced rough seas. Only one report noted calm seas throughout.
It is difficult to assess the true extent of the effects of rough seas given they were not
always recorded in the summaries even when they definitely occurred as evidenced by
HMR 74 and HMR 79. However, it is evident that animals encountered rough seas for
prolonged periods on some voyages. For example, during a 22-day November 2018/De-
cember 2019 voyage of the MV Ocean Ute carrying 5606 breeder cattle, there were “rough
seas for approximately seven days in total” (IO 40) and during the December 2018/January
2019 voyage of the MV Shorthorn Express on which cattle experienced simultaneous hunger,
Animals 2021,11, 2862 15 of 22
thirst and heat stress, “Sea conditions were rough or very rough during 13 of the 19 days at
sea” (IO 55).
Effects of rough seas on cattle during voyages have never been formally studied.
However, the IO summaries indicate that rough seas led to inappetence, injuries, lameness,
poor pen conditions and mortalities.
In rough seas, animals struggle to maintain balance on the rough deck surfaces, which
can result in abrasions and other injuries [
51
]. The HMR report for the July 2018 voyage of
the MV Yangzte Fortune carrying 2192 cattle mentions, “the first mortality was recorded on
day one, which was due to an injury sustained as a result of the rough seas” (HMR 74 for
IO 12). On another voyage on that same ship, the MV Yangtze Fortune, carrying 2405 cattle
in December 2018 “up to four meter seas were encountered for 3 days” and “rough sea
conditions caused by the proximity of the cyclone for 3 days during the voyage contributed
to the lameness issue”; lameness was one of the main causes of mortalities during that
voyage in which >500 treatments were administered (IO 59).
Rough seas also affected appetite. For example, the December 2019 voyage of the
MV Girolando Express carrying 1943 cattle, “Days 11 and 12 of the voyage experienced
rough sea conditions, with an observed reduction in pellet consumption by the cattle”
(
IO 205
). It is possible that animals experienced some degree of motion sickness. Although
no studies on impact of simulated ship motion on cattle have been performed, studies of
sheep have identified changes in heart rate, feed and water intake, behaviour and body
posture [
52
,
53
]. Experimental treatment of sheep with anti-emetics, alleviated some of these
signs suggesting that sheep experience feelings of nausea due to the ship motion [
54
]. There
are no studies on sea-sickness in cattle but the IO summaries indicate that investigation
into this is warranted.
Rough seas predictably also affected bedding. For example, on a November 2019 voy-
age of the MV Yangtze Fortune carrying 4165 cattle, “The observer reported that occasional
flooding events occurred during this voyage. These resulted from water pipes
. . .
broken
float-valve mechanisms or from unsteady sea conditions” (IO 201). On a September 2019
voyage of the MV Ocean Drover carrying 8316 cattle, “The condition of the pads in the pens
on the lowest of the open decks deteriorated further with the onset of rough conditions on
day 10 due to exposure to rain and direct wave action” (IO 179).
The most extreme potential consequence of rough seas, the cessation of all animal
husbandry activities, was not recorded in these IO summaries. One shipboard veterinarian
has explained that during extreme rough weather, crew are not allowed on decks and are
confined to the accommodation tower/superstructure (Lynn Simpson pers comm). When
the captain makes that order, there is no access to the animal decks. Thus, there is no-one
to feed or water animals, to treat them or euthanise them. In addition, water washing out
the decks [
55
] causes contamination of fresh drinking water with salt-water (Lynn Simpson
pers comm). The animals remain untended for the duration of the poor weather conditions.
2.8. Poor Ship Infrastructure
There are specific directions for vessel infrastructure in the OIE guidelines [
16
] which
include details on fittings, ventilation and adequacy of food water provision. Despite this,
ship infrastructure issues with minor or major impact on animal welfare were documented
in 23/37 (62%) of the IO summaries reviewed (Table 1). In some cases, the issues appeared
persistent or recurring, suggesting that there is a lack of adequate action being taken to
rectify defects. Poor ship infrastructure contributed to hunger and thirst (as described in
Section 2.1 Hunger and Section 2.2 Thirst). For example, poorly secured food and water
troughs were a common issue (e.g., IO 12, 16, 59, 111, 152) that were not rectified despite
repeated documentation and despite the fact that all these reports pertained to two vessels,
MV Yangtze Fortune and MV Yangtze Harmony, which accounted for 10/37 (27%) of the
voyages covered by the IO summaries.
Ship infrastructure was so poor on a July 2018 voyage of the MV Yangzte Fortune
that AMSA applied conditions to the vessel’s Certificate for the Carriage of Livestock
Animals 2021,11, 2862 16 of 22
(ACCL) prohibiting it from undertaking long-haul voyages (>10 days) (IO 12). The ACCL
conditions were removed in October 2018 but IO summaries from this vessel continue to
document defects including poorly secured troughs, leaks, broken hoses, poor drainage,
faulty pipes, broken float valves and flooding (IO 59, 92, 111, 152, 201, 210). Major leaks,
poor drainage, poorly secured food and water troughs and overflow of the bilge aboard
the sister ship, the MV Yangzte Harmony, also led to flooding in August 2018 (IO 16) and
December 2018 (IO 56). Water infrastructure failures impacted animal welfare because they
contributed to wet, sloppy pad conditions that exacerbated the effects of high temperatures
and humidity in addition to lameness problems.
Independent observers reported ventilation issues on several voyages which are
likely to have compromised animal welfare by impeding access to clean air, causing
respiratory irritation and predisposing animals to heat stress and respiratory disease.
In September/October 2018, the IO aboard the MV Gloucester Express reported that the
ventilation system was drawing exhaust fumes from the engine into Hold 3 where cattle
were penned (IO 22). The defect is said to have been repaired in January 2019 (IO 22) but
the IO on a January 2019 voyage of this vessel “detected exhaust fumes” (IO 61). A “slightly
smoky haze” and “residue on the walls of these holds” were noted by the IO aboard the MV
Ganado Express during a May/June 2019 voyage carrying 1832 cattle (
IO 136
). In addition
to direct failures in ventilation systems, obstructions impeding airflow (e.g., ramps, wall,
piles of feed, suspended feed troughs) were described (IO 55). There was no record that
ammonia concentrations were measured on any voyage despite published concerns about
high ammonia concentrations on live export ships [
56
] and OIE guidelines for maximum
ammonia concentration for livestock [16].
2.9. Mechanical Breakdown
Engine failure (IO 136, 144, 173) and unspecified “mechanical issues” which required
anchoring for 24 h to repair (IO 185) were both reported. For example, the main engine of
the MV Ganado Express broke down on 11 June and the vessel could not proceed until the
13 June 2019 (HMR 79; IO 136 has discrepant dates of 10 June to 12 June). The summary
for this high mortality voyage stated that these defects had no impact on animal health
and welfare. Likewise, for the voyage of the MV Girolando Express that required anchoring
just north of the equator in September 2019, the IO summary stated that there was “no
evident impact on the health and welfare of the cattle” (IO 185). Yet, the effect of equatorial
conditions and mechanical breakdown were noted when the MV Galloway Express carrying
1812 cattle in August 2019 stopped for just over 6 h for engine repairs: “the walls and
sundeck were being heated by direct sunlight as there was an absence of any cloud cover
in the equatorial region with no cooling effect from normal travel movement (IO 173). In
addition, on that voyage which reported morbidity and mortality due to heat stress, when
the engine was working “heat from the engine room contributed to the hot areas on the
vessel” (IO 173).
The recent sinking of the MV Gulf Livestock 1 on a cattle voyage from New Zealand to
China (September 2020) has also exposed the repetitive mechanical problems experienced
on some of these ships. In May 2019, this vessel’s departure from Australia was delayed
by AMSA due to navigation and stability issues and in June 2019, the main engine failed,
leaving the vessel adrift for “around 25 h” (IO 144). In August 2020, the main engine failed
again and it had to be towed by the Philippines Navy [
57
]. In September 2020, this vessel
carrying 43 crew and 5867 New Zealand dairy cattle, sunk after encountering simultaneous
engine failure and typhoon conditions [
57
]. A newly published report into the European
livestock fleet concluded that the average EU-approved livestock carrier is a sub-standard
ship [
58
]. It is not known how the Australian fleet would compare but some of the ships
used on the China voyages are detailed in the report.
The IO summaries provide solid evidence that inherent design issues in addition to the
failure to maintain or improve infrastructure contributes to poor animal welfare onboard
live export ships contrary to OIE guidelines [
16
]. The summaries suggest inadequate action
Animals 2021,11, 2862 17 of 22
by both maritime authorities and DAWR to address these issues. However, it may be that
attempts were made to address these issues and that IOs were specifically appointed on
these particular ships to provide ongoing assessment.
2.10. Mismanagement at Discharge
Many instances of poor animal welfare and/or mortality were reported at discharge
(20/37 (54%)); (Table 1). Though IO are required to observe cattle from loading until the
completion of discharge (unloading of cattle at the destination port), IO are not deployed
on all voyages, the IO have not always been present during loading (IO 119) or for the entire
loading period (IO 23) and in one case, the IO departed prior to completion of discharge
and was not there to observe the death of an additional animal (IO 210). As such, problems
with loading or discharge may be under-represented in the IO summaries.
There were instances of discharge delays in some reports (e.g., IO 55, 60) and unsafe
vehicles were provided for cattle from the MV Yangzte Harmony in December 2018. Animals
were loaded onto open top single deck trucks and “To close the gate the truck had to move
away from the yards to allow for the gate to swing. A metal pipe was threaded through from
one side to the other side to stop the cattle jumping out the back of the truck whilst the gate
was being closed” (IO 56). Failing to secure cattle on a moving vehicle constitutes unsafe
animal transport by Australian Standards. The Australian Animal Welfare Standards and
Guidelines for the Land Transport of Livestock (2012) SA5.13 mandates that the transporter
must: (i) inspect the livestock crate immediately before departure, to ensure that doors are
closed and secured [59].
Poor handling at discharge included “inexperienced Chinese handlers on the wharf
occasionally prodding cattle unnecessarily during the process of unloading cattle” (
IO 17
),
“An excess of on-shore personnel with sticks
. . .
hampered the movement of the cattle”
(
IO 22
), “some instances of rough handling” (IO 48) and unspecified “non-compliant han-
dling” (IO 60, 201). In some instances, rough handling of cattle at discharge was attributed
to “less-experienced stevedores” (IO 48), “local stevedores had limited knowledge of calm
stock movement” (IO 60) and “a language barrier” (IO 201). These challenges should be rea-
sonably anticipated particularly in countries lacking stringent animal
welfare regulations
.
As per Section 2.1 Hunger and Section 2.2 Thirst, there was sometimes failure to
provide animals with food and water during the discharge period. ASEL 5.5 (b) mandates
that “adequate feed and water must be supplied to livestock waiting to be discharged, and
during the discharge period”. In a breach of ASEL, some of the 3234 cattle discharged
from the MV Shorthorn Express in January 2019, were not fed for the two days of discharge
because “no fodder remained on board” (IO 55). There was also a breach of ASEL on the
MV Ocean Ute whilst discharging 5606 breeder cattle at Tianjin in December 2018 with the
IO noting that “whilst the vessel was discharging, the cattle appeared not to have been fed”
(IO 40).
Two cattle subjected to adverse animal welfare risks and stressors of a long voyage
were killed at discharge because they were “non-importing country protocol cattle” which
had been “inadvertently loaded” (IO 92). Other cattle were “rejected at discharge by the
importer because of leg injuries” (IO 55) with the euthanasia delayed and performed by
the bosun after the Australian personnel had departed. IO summaries also reported deaths
at discharge where animals were, “euthanised after being deemed unfit for discharge by
the AAV” (IO 162), “euthanised by captive bolt due to a fractured leg sustained during
discharge” (IO 195) and smothered to death during discharge (IO 92, 106).
3. Independent Observer Summary Limitations
The animal welfare risk factors outlined highlight the importance of independent
observers but also the reporting deficiencies. Firstly, IO were not deployed on all live cattle
export voyages from Australia to China. This was mostly due to lack of IO availability for
all voyages but may have also been due to lack of appropriate accommodation space in
some instances. Secondly, discrepancies between the IO summaries and HMR reports call
Animals 2021,11, 2862 18 of 22
into question the accuracy and completeness of the IO summaries. These discrepancies can
only be noted when a separate report, such as an HMR can be used to cross-check. Thirdly,
there is currently no standard reporting format or minimum detail required [
9
]. Many key
variables were either not measured and/or not routinely reported in the summaries. Basic
measurements such as DBT, WBT, relative humidity and ammonia concentrations were
either not recorded and/or not performed. Sea conditions were not routinely recorded.
Of concern, given the incidence of heat stress, the maximum WBT was only specifically
recorded on 14/37 (38%) of voyages. Information on lighting, noise, social interactions and
grouping, handling techniques, treatments and infrastructure was inconsistent or absent.
The phrase “despite this
. . .
no negative effects on health or animal welfare were
observed” or similar, was routinely stated in the summaries. It is not possible to ascertain
whether this assessment was accurate as in some cases, it seemed unlikely or implausible.
In one instance, (IO 201), the summary repeatedly stated that there were no negative
health and/or welfare consequences, despite cattle being in deep sloppy conditions in high
humidity or surviving a heat stress event that resulted in them lying prone. Conditions
contrary to OIE guidelines [
16
] were sometimes evident in photographs in which the
DAWR had labelled as “no issues identified”.
It should be noted that citing concerns about COVID-19, DAWR ceased the deploy-
ment of IO in March 2020 [
9
,
49
]. Therefore, this source of purportedly independent
information has ceased, despite live cattle voyages continuing.
4. Recommendations
This review has highlighted a number of key risk factors, some of which could be
alleviated or resolved with changes to existing live export management and standards. If
this trade is to continue, the authors make the following recommendations:
(a) Food—For voyages to China, food calculation must take into account loading (
1–2 days
),
the planned voyage duration (departure to final discharge) and an emergency con-
tingency of at least 5 days. As delays of more than 5 days were recorded in some IO
Summaries, contingency planning should include the ability to load additional food
en-route as necessary. Feed rationing is not acceptable and has the potential to cause
suffering and loss of cattle lives and potentially endanger human lives (if navigation
choices are influenced by food shortage).
(b)
Water—Repeated reports of water infrastructure issues should result in vessels being
suspended from the trade until they are corrected. Appropriate water infrastructure
must be confirmed by both AMSA (inspection) and DAWR (assessment of prior
voyage reports) before any ship is allowed to sail with cattle.
(c)
Conditions—Approval of a voyage by DAWR should take into account cattle de-
tails and meteorologic forecasting to reduce chances of heat stress, cold stress and
rough seas.
(d) Source and cattle-type—Winter-acclimatised Bos taurus cattle from southern Australia
should not be exported across the Equator.
(e)
Bedding—Lameness is common, painful, debilitating and potentially fatal. All cattle
should have an appropriate depth and type of dry bedding for a positive welfare state
and to reduce the risk of lameness. Appropriate bedding should be supplied at all
stages of the voyage. Current bedding requirements are inadequate and there have
been no bedding improvements in the new ASEL (ASEL: 3.0) [60].
(f) Load plans—Load plans need to be reviewed and checked in situ before departure by
the regulator.
(g)
Space allowance—Increased space above that mandated in ASEL v 2.3 is necessary.
(h)
Veterinary oversight—Given the issues with health, welfare, disease, treatments and
adverse conditions, all live cattle export voyages from Australia to China should have
a veterinarian onboard.
(i)
Essential medications—The minimum number of doses of antibiotic appropriate for
BRD needs to be increased.
Animals 2021,11, 2862 19 of 22
(j)
Discharge—Welfare at discharge should be improved particularly in relation to handling
practices, ensuring adequate feed during discharge and appropriate transport vehicles.
(k)
Vessel performance—A vessels’ history should be considered in addition to any
inspection when voyage approval is granted. Vessels that repeatedly experience
mechanical breakdown should not be permitted to carry Australian livestock, unless
there is unequivocal evidence that the underlying cause(s) for the breakdown have
been comprehensively resolved.
(l)
IO Program—The DAWR should continue with the IO program but IOs need specific
and detailed training and the IO summaries need to be standardised to contain
essential routine data. To ensure robust data collection, block-chain technology could
be used in combination with CCTV recordings.
(m) Regulation—Failure of the regulator (DAWR) to institute appropriate changes directed
by voyage analysis needs to be rectified as a matter of urgency.
5. Conclusions
The live animal export industry poses inherent risks to the welfare of
animals [2,5,61,62]
.
The IO summaries have significant limitations but confirm existing risk factors identified
by Australian government reviews [
2
4
], the animal welfare science literature [
17
,
28
,
61
]
animal welfare organisations [
62
,
63
], the Australian Veterinary Association [
64
], media
exposés [8], and the general public [65,66].
The IO summaries provide substantial evidence that animal welfare risks are signif-
icant on voyages exporting cattle from Australia to China including some that could be
preventable. Serious animal welfare impacts include a high number of voyages in which
hunger, thirst and exposure to extreme weather conditions occurred. In addition, pen
conditions and space allowances were often contrary to OIE guidelines [
16
] and rough seas
were encountered. Ship infrastructure problems or ship mechanical issues had a direct
impact on animal welfare and the welfare of some animals was compromised by conditions
at discharge. Given the range and repeated nature of the health problems in addition to the
long-haul nature of the voyages, it is unclear as to why the Australian regulator, DAWR,
does not require a veterinarian for all cattle voyages to China.
These IO summaries are only one portion of the voyage information provided to
DAWR. It is not known whether DAWR analyse the relevant voyage information in its
entirety as there is no information available in the public domain. It is critical that the regu-
lator analyse all the available data and information to identify the preventable recurring
animal welfare impacts associated with these long-haul voyages. Without this, the health
and welfare of many thousands of Australian cattle exported annually to China are likely
to be compromised, with no public scrutiny.
Author Contributions:
Conceptualization—S.F. and D.E.; resources—S.F., D.E. and S.H.; data
curation—S.F., D.E. and S.H.; writing—S.H., review and editing—S.F., D.E. and S.H. All authors have
read and agreed to the published version of the manuscript.
Funding:
This research was funded by Vets Against Live Export (VALE) and the Royal Society for
Prevention of Cruelty to Animals (RSPCA Australia).
Institutional Review Board Statement: Not applicable.
Data Availability Statement: Not applicable.
Acknowledgments:
Lynn Simpson, for her insight into voyage problems derived from being a
shipboard veterinarian on 57 long-haul voyages.
Conflicts of Interest: S.H., S.F. and D.E. are all members of Vets Against Live Export (VALE).
Animals 2021,11, 2862 20 of 22
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... Traditional practices are often ineffective (Figure 1) against evolving challenges, for instance, 'shy feeders' -animals that struggle to secure their nutritional requirements [6,7]. This phe-nomenon detrimentally impacts their health and productivity. ...
... Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 7 July 2023 doi:10.20944/preprints202307.0473.v16 ...
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This critical review illuminates the transformative potential of Artificial Intelligence (AI) and sensor technologies in the dairy livestock export industry, an area facing mounting pressure for heightened efficiency and sustainability. We rigorously scrutinize the uptake of these novel technologies in identifying 'shy feeders,' automating weight monitoring of individual livestock, and refining cattle enumeration procedures. The investigation unravels their capacity to bolster animal welfare standards, minimize supply chain discrepancies, and amplify operational productivity. Moreover, the research delves into how these innovations may enhance market access and competitiveness in a swiftly shifting global dairy landscape. We further highlight the challenges encountered and future trajectories, providing a strategic framework for technology integration within the livestock export sector. Ultimately, this review underlines the importance of adopting AI and sensor technologies, indicating a shift towards precision digital livestock farming that amalgamates efficiency, animal welfare, and profitability.
... Temporary starvation is a common response to long-distance transport by sea, with sheep often not feeding for the period that they spend in an assembly feedlot (usually about 5 days) before loading [45,46] and in the early stages of the sea voyage [47]. As well, many ships carry inadequate feed supplies and have to ration livestock, sometimes reducing feed provision by as much as 36% of the recommended allowances [48]. This is likely to increase the proportion of human pathogens, such as E. coli O157, in the animals' microbiome [27]. ...
... At such high stocking densities, sheep typically stand with their head facing the floor for long periods [63]. In cattle transported to China, shipments from Australia rarely meet OIE standards for space requirements [48]. ...
Article
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Simple Summary Most human disease emanates from animals, and there is a significant risk of zoonotic diseases being transmitted from livestock that travel long distances between countries as part of the live export trade. Both cattle and sheep are subject to many stressors when transported long distances by ship, including starvation, ship motion, ammonia, heat stress, high stocking density, an unhygienic environment and mixing of animals. These are believed to deplete immune system responses, fostering disease transmission between livestock. Several zoonotic diseases commonly occur in livestock exported from Australia, and this sometimes triggers rejection by importing countries. Trade restrictions have been imposed in the past by both importing and exporting countries as a means of controlling disease spread. It is concluded that the live export trade in cattle and sheep poses a significant risk of spreading zoonotic diseases. Abstract The growing human and livestock populations in the world today and increased international transport of livestock is increasing the risk of both emerging and endemic zoonotic diseases. This review focuses on the potential for the live export trade to transmit zoonotic diseases. Both cattle and sheep are exposed to major stresses during the transport process, which are described, together with the impact of these stresses on the immune function of transported animals. Heat stress, overcrowding, inanition, ship and vehicle motion and accumulation of noxious gases are analysed for their ability to potentiate infectious diseases. The major zoonoses are described: pustular dermatitis, pneumonia, salmonellosis, as well as some common conditions, such as conjunctivitis, with specific reference to stressors associated with each disorder. Historical precedents exist for restriction of the trade based on disease risks. Finally, the economic and regulatory frameworks are considered to evaluate ways in which the spread of zoonotic diseases can be controlled.
... Traditional practices often falter in managing animals (Figure 1), struggling to meet their nutritional needs due to a lack of assertiveness (shy feeders) in reaching feeding troughs in group feeding scenarios [6][7][8]. This behavioral pattern adversely impacts their health and productivity, leading to undernutrition, weight loss, decreased productivity, increased disease susceptibility, and, potentially, a shortened lifespan [9,10]. ...
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This technical note critically evaluates the transformative potential of Artificial Intelligence (AI) and sensor technologies in the swiftly evolving dairy livestock export industry. We focus on the novel application of the Internet of Things (IoT) in long-distance livestock transportation, particularly in livestock enumeration and identification for precise traceability. Technological advancements in identifying behavioral patterns in ‘shy feeder’ cows and real-time weight monitoring enhance the accuracy of long-haul livestock transportation. These innovations offer benefits such as improved animal welfare standards, reduced supply chain inaccuracies, and increased operational productivity, expanding market access and enhancing global competitiveness. However, these technologies present challenges, including individual animal customization, economic analysis, data security, privacy, technological adaptability, training, stakeholder engagement, and sustainability concerns. These challenges intertwine with broader ethical considerations around animal treatment, data misuse, and the environmental impacts. By providing a strategic framework for successful technology integration, we emphasize the importance of continuous adaptation and learning. This note underscores the potential of AI, IoT, and sensor technologies to shape the future of the dairy livestock export industry, contributing to a more sustainable and efficient global dairy sector.
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Green hydrogen from electrolysis of water has attracted widespread attention as a renewable power source. Among several hydrogen production methods, it has become the most promising technology. However, there is no large-scale renewable hydrogen production system currently that can compete with conventional fossil fuel hydrogen production. Renewable energy electrocatalytic water splitting is an ideal production technology with environmental cleanliness protection and good hydrogen purity, which meet the requirements of future development. This review summarizes and introduces the current status of hydrogen production by water splitting from three aspects: electricity, catalyst and electrolyte. In particular, the present situation and the latest progress of the key sources of power, catalytic materials and electrolyzers for electrocatalytic water splitting are introduced. Finally, the problems of hydrogen generation from electrolytic water splitting and directions of next-generation green hydrogen in the future are discussed and outlooked. It is expected that this review will have an important impact on the field of hydrogen production from water. Graphical Abstract
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The global livestock industry grapples with formidable challenges stemming from the escalation and dissemination of infectious diseases. Zambia, an agricultural cornerstone where livestock is pivotal for economic sustenance and food security, confronts the imperative task of effectually surveilling and managing infectious diseases. This study investigates into the possibilities of the application of artificial intelligence (AI) for infectious disease surveillance in the Zambian livestock sector. The study meticulously scrutinizes the prevailing state of infectious disease surveillance, evaluates the latent capabilities of AI technologies, and critically discusses the intricate landscape of challenges and opportunities entailed in their implementation. In the intricate tapestry of Zambia's economy, livestock farming assumes a central and irreplaceable role, contributing substantially to the well-being and livelihoods of a significant portion of the populace. However, the omnipresent specter of infectious diseases perpetually menaces livestock health, casting a shadow on productivity and economic equilibrium. Conventional methodologies in disease surveillance exhibit inherent shortcomings, characterized by delays in reporting and inherent inaccuracies. This study is an exploration of possibilities of the AI applications designed to fortify infectious disease surveillance within Zambia's livestock domain. The infusion of AI technologies holds the transformative potential to reshape disease monitoring paradigms, enabling early detection and facilitating swift response strategies in the face of emerging threats. The ensuing critical analysis navigates the intricate terrain of the application of AI in the Zambian livestock context, shedding light on its promising prospects, while pragmatically addressing the hurdles that may accompany its incorporation.
Chapter
In recent years, increasing household incomes and urbanisation, particularly in Asian countries, have resulted in a greater consumption of dairy products. This demand has led to a major expansion in a number of small-scale dairy farms and the development of many large-scale farms. However, in some cases, the appropriate expertise was not in place, leading to a number of major cow welfare issues. This chapter focuses on welfare issues in new entry cattle farming development, especially in countries or regions that are not traditional dairy farming areas. The effect of drivers such as market pressures, implementation of development programmes and social constraints will be discussed. The cow welfare problems that occur in new large-scale and small-scale dairy systems are different. In new large dairy systems, the issues are mainly due to poor feed supply planning, poor building design and poor management of staff and resources. However, most welfare issues in new small-scale developments arise from the adoption of traditional animal housing system design and practices. Each area of animal management is discussed in detail in this chapter, with a focus on health and welfare management including housing, ventilation, feeding, watering and disease and health management across all ages of dairy cattle.
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Simple Summary “Social license to operate” (SLO) is the process by which a community grants or withholds permission to an industry to conduct its business. This article describes how animal welfare has recently become arguably the most crucial consideration underpinning SLO for Australian animal use industries in the past decade. Such industries include animal racing, wildlife harvesting, and the farming and live export of livestock. We posit that these industries are at risk of loss of SLO unless policies shift to proactive engagement with stakeholders and transparent monitoring of animal welfare outcomes. Abstract “Social license to operate” (SLO) refers to the implicit process by which a community gives an industry approval to conduct its current business activities. It has become an important focus for many natural resource management fields (especially mining), but there is less awareness of its role in animal use industries. This article describes how animal welfare has recently become arguably the most crucial consideration underpinning the SLO for Australian animal use industries. It describes several industries in Australia that have faced animal welfare scrutiny in the past decade (2010–2020) to illustrate how persistent issues can erode SLO, lead to regulatory bans, and decimate previously profitable industries. Industries described include the live export of livestock, greyhound and horse racing, kangaroo harvesting, and dairy and sheep farming. In these cases, there has been intense public discourse but little scholarly progress. This article examines factors that may have contributed to these developments and suggests approaches that may assist these industries in maintaining their SLO. Animal welfare has become a mainstream societal concern in Australia, and effective management of the community’s expectations will be essential for the maintenance of SLO for many animal use industries.
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Background Dermatophytosis is a common problem in cattle. The aetiological factors associated with this disease are filamentous fungi with the ability to digest and grow on keratinized substrates. In cattle, and less frequently in other domestic animals and people, the dermatophyte Trichophyton verrucosum is most commonly isolated from skin lesions. The dermatophyte Trichophyton benhamiae is an important zoonotic pathogen, and the main sources of transmission are guinea pigs and other small rodents. Objectives In this report, we show multispecies infection in calves (Bos taurus) after long‐term transport and vaccination against trichophytosis. Animals Sixty animals were imported of which 32 were observed to be affected with superficial infection nine to 12 days after vaccination for dermatophytosis. Methods and materials Diagnosis was made correlating the clinical signs with a micro‐ and macroscopic examination of cultured fungi. Molecular differentiation was used to confirm the species affiliation. Results Eight of the calves were infected with T. verrucosum alone, and 24 calves with both T. verrucosum and T. benhamiae. We suggest that the cause of this large outbreak was immunosuppression of the animals resulting from the stress of transport and administration of vaccine. Conclusion Both T. verrucosum and T. benhamiae can be seen concurrently in cattle.
Chapter
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THE IMPACT OF LAMENESS ON DAIRY CATTLE WELFARE: GROWING NEED FOR OBJECTIVE METHODS OF DETECTING LAME COWS AND ASSESSMENT OF ASSOCIATED PAIN
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Simple Summary Long distance transport of livestock from one continent to another by ship raises concerns about the welfare of the animals on board the ship. Media exposés may have influenced the public towards negative views about the trade. A total of 522 members of the public in Brisbane, Australia, were surveyed just before and after an exposé of cruelty to sheep on board ships destined for the Middle East in 2017. More respondents had negative than positive attitudes towards the trade and almost one half had seen the media exposé. The exposé increased the proportion of respondents indicating that they were familiar with the trade, and although it did not affect those indicating negative feelings towards it, it increased the proportion believing the trade should end. Abstract The long distance export of livestock from Australia to Asia has long aroused controversy for suspected animal welfare concerns during and after the voyage. However, there is little or no information on the attitude of the Australian public towards this trade. A total of 522 Australians were surveyed in Brisbane to find out about their understanding of the trade, their attitudes towards it and the influence of demographic factors. Approximately one half of respondents were surveyed just before a media exposé of cruelty on sheep shipments in 2017 from Australia to the Middle East and one half just after the exposé, to see the impact of media depiction of cruel treatment of live export sheep. Most respondents believed that they were familiar with the industry, and more after the media exposé than before. More respondents had negative than positive feelings about the trade, and just over a quarter had no feelings. Twice as many thought it should be ended than maintained, particularly women, but 40% said that it depends, mainly on ethics and animal-based reasons. Those that thought it should not be ended mainly did so to support farmers and the country’s economy. Almost one half had seen the media exposé, particularly older respondents, and expressions of sadness, empathy for the animals and anger were the most common responses to such footage. Although it increased the number of people saying that they were familiar with the trade, it did not affect people’s view of the trade, except that fewer indicated that ending the trade was dependent on other factors. It is concluded that the majority of Australian respondents in one capital city had negative views towards the live export trade, and that a media exposé had some influence on this view.
Article
During actual and simulated ship transport, vessel roll (sideways) and heave (vertical) movements produce behavioural responses in sheep, typically positional and feeding changes. Antiemetics may moderate these responses, hence sheep were exposed to these two movements of similar amplitude and period to a commercial livestock vessel to test effects on feeding, heart rate and body posture, with and without antiemetics to potentially attenuate the motion effects. Six sheep were restrained in pairs with a mesh between them on a moveable programmable platform, generating roll, with heave created by a forklift. Treatments were applied daily for 60 min in a changeover design over 12 consecutive days. No effects on feed intake were detected but in the Heave treatment sheep ate faster (p = 0.006). These sheep also had a faster biting rate whilst prehending food, but only when the antiemetic was provided (P = 0.002). The antiemetic reduced feed prehending time. Sheep in Heave also took fewer mastication bites than those in the Control, but only when no antiemetic was provided (P = 0.002). Thus the antiemetic facilitated feed intake which was taken with fewer bites, and alleviated the reduced mastication in Heave, which was probably in compensation for increased prehension bites. Sheep in Heave also spent longer with their head against the mesh than those in the Control treatment, perhaps to aid balance. The antiemetic reduced time spent with their head on the mesh. Roll in particular increased stepping frequency, but antiemetics reduced the frequency of stepping behaviour, particularly during Roll movement. It is concluded that simulated ship motion had adverse effects on feeding behaviour and balance, which appeared to be attenuated by antiemetics.
Book
The aim of this manual is to improve the welfare of dairy cattle in tropical developing countries, and by doing so, optimise cow and herd performance. It gives the stockmen and farmers directly concerned with the cattle a better understanding of animal behaviour and the ways cattle communicate their comfort or distress. The book discusses normal cattle behaviour and shows how domestication and breeding can affect behaviour to achieve high levels of production of milk, live weight gain and fertility. Animal welfare is important for producers because it can affect the health, production and contentment of cows. Animal welfare practices which adversely affect cow and herd performance on tropical small holder dairy farms are identified. Advice is then given to change the animal's environment or modify a handler's technique to ensure cattle have the degree of comfort needed to achieve more profitable and sustainable systems of livestock farming. Cow Talk will be a beneficial resource for farmers who want to improve animal welfare, farm advisers who can assist farmers to improve their welfare practices, educators who develop training programs for farmers and dairy advisers, and other stakeholders in tropical dairy production such as local agribusiness, policy makers and research scientists.
Article
Floor movement influences sheep responses to transport, but the importance of movement regularity and interactions between sheep are unknown. To test this, sheep were restrained in pairs in a crate mounted on a moveable, programmable platform for 60 min periods, changing treatments over 12 consecutive days. In an initial experiment a repeated speed of movement and change in angle (regular movement) was compared to variable angles and speeds (irregular movement) of roll, pitch or combined movements, for sheep behaviour, heart rate and feed and water intake responses. Feed intake was increased by irregular roll+pitch motion (P = 0.04). During irregular sequences sheep affiliated more, with their heads one above the other (P = 0.001) and supported themselves against the crate (P < 0.001) or kneeling (P = 0.03). Irregular sequences and combined roll and pitch synergistically increased stepping behaviour, indicating loss of balance, and heart rate, possibly indicating stress (P < 0.001). Heat rate data demonstrated that the RMSSD band was reduced during irregular movement (P = 0.04), and LF/HF ratio increased during irregular sequences of roll + pitch (P = 0.007), suggesting less parasympathetic nervous system activity. In a second experiment, we investigated the effects of these floor motion patterns with and without a barrier to separate the sheep. With no barrier or irregular motion, sheep stepped more to avoid loss of balance (P < 0.001) and were again more affiliative. During irregular motion they supported themselves more against the crate (P < 0.001). With no barrier there was more agonistic behaviour (body pushing (P = 0.02), butting (P = 0.02) and evading the other sheep (P = 0.001) and less rumination (P = 0.02), which together with a reduction in RMSSD and NN50 suggested that sheep welfare was reduced by the close proximity of the other sheep. The ratio of low to high frequency beats was highest (P = 0.005) and the RMSSD and NN50 were lowest (P < 0.001) during irregular motion and no barrier. Evidence is provided that sheep were both more stressed in this combination of treatments and also exercising more, through stepping behaviour. Thus irregular sequences and combined roll and pitch caused stress and increased activity to correct loss of balance, as well as increased affiliative behaviour. Separating sheep during irregular motion reduced body instability and stress, suggesting that close stocking is detrimental to their welfare.
Article
The accuracy of predictive models (also known as mechanistic or causal models) of animal responses to climate change depends on properly incorporating the principles of heat transfer and thermoregulation into those models. Regrettably, proper incorporation of these principles is not always evident. We have revisited the relevant principles of thermal physiology and analysed how they have been applied in predictive models of large mammals, which are particularly vulnerable, to climate change. We considered dry heat exchange, evaporative heat transfer, the thermoneutral zone and homeothermy, and we examined the roles of size and shape in the thermal physiology of large mammals. We report on the following misconceptions in influential predictive models: underestimation of the role of radiant heat transfer, misassignment of the role and misunderstanding of the sustainability of evaporative cooling, misinterpretation of the thermoneutral zone as a zone of thermal tolerance or as a zone of sustainable energetics, confusion of upper critical temperature and critical thermal maximum, overestimation of the metabolic energy cost of evaporative cooling, failure to appreciate that the current advantages of size and shape will become disadvantageous as climate change advances, misassumptions about skin temperature and, lastly, misconceptions about the relationship between body core temperature and its variability with body mass in large mammals. Not all misconceptions invalidate the models, but we believe that preventing inappropriate assumptions from propagating will improve model accuracy, especially as models progress beyond their current typically static format to include genetic and epigenetic adaptation that can result in phenotypic plasticity.
Article
Dairy cattle spend less time lying and show signs of increased stress when housed in rainy and windy conditions, but no work has separated the effects of exposure to inclement weather from muddy conditions underfoot. Our objective was to evaluate the effects of muddy conditions alone on lying behavior, hygiene, and physiological responses. We housed pairs of pregnant, nonlactating dairy cattle (n = 12; 6 primigravid heifers, 6 multiparous cows) in enclosed pens with dirt floors and a concrete feed apron. Cattle were exposed to 3 levels of soil moisture: 90 (dry), 74 (muddy), or 67% (very muddy) dry matter for 5 d each in a replicated 3 × 3 Latin square design. Lying time was measured on all days with data loggers, and lying locations and postures were recorded on the final day of each treatment. Before and after each treatment, blood samples were collected, and the percentage of dirty surface area was measured on the udder, hind leg, and side of each animal. Cattle spent less time lying down in muddier conditions, especially in the first 24 h of exposure, when cows and heifers spent only 3.2 and 5.8 h, respectively, lying down in the muddiest treatment compared with 12.5 and 12.7 h on dry soil. When the soil was dry, cattle never chose to lie down on concrete, but in muddier conditions they spent a greater proportion of their lying time on concrete (mean ± SE: 56 ± 14 and 10 ± 8% in the very muddy and muddy treatments, respectively). The shift in lying location was more marked for heifers, and all 6 spent ≥87% of their lying time on concrete in the muddiest treatment. When cattle chose to lie down on wetter soil, they limited the surface area exposed to their surroundings by tucking their legs beneath their bodies (mean ± SE: 30 ± 11, 15 ± 4, and 5 ± 2% of lying observations in the very muddy, muddy, and dry treatments, respectively). Despite cattle spending less time on wetter soil, all 3 measured body parts became dirtier in muddier conditions (1.4-, 1.6-, and 1.8-fold more on the leg, udder, and side, respectively, in the muddiest compared with the driest treatment). In addition, higher soil moisture levels resulted in greater reductions in white blood cell counts relative to baseline levels (-0.95, -0.43, and 0.34 × 10(9)/L relative to baseline levels in the very muddy, muddy, and dry treatments). Muddy conditions, even in the absence of wind or rain, are aversive for cattle and have negative implications for their welfare.
Chapter
Provision of adequate water supplies is essential for the welfare of farm animals. Water forms the largest component of an animal’s body and is an essential nutrient required for all biological functions, including temperature regulation, digestion, foetal development, and production. This essential nutrient can only be restricted for short periods of time. Water deprivation results in substantial welfare concerns, as it can hinder biological functioning, and has been associated with morbidity and, in cases of extreme deprivation, mortality. It is likely associated with a highly negative emotional state in farm animals (e.g. in humans referred to as thirst). Both quality and quantity of water may limit water intake, and management factors such as high stocking density at the water source can also negatively affect water intake. Providing examples from the primary production species, cattle, pigs, and poultry, we describe the importance of water quality and quantity in food animal production.