Yolande Seddon

Yolande Seddon
University of Saskatchewan | U of S · Department of Large Animal Clinical Sciences

BSc, MSc, PhD

About

24
Publications
6,175
Reads
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112
Citations
Additional affiliations
January 2012 - December 2015
Priaire Swine Centre, Saskatchewan, Canada
Position
  • Research associate - Swine Behaviour and Welfare

Publications

Publications (24)
Article
The welfare of stall-housed gestating sows is a point of public concern worldwide. In Canada, the Code of Practice for the Care and Handling of Pigs (2014) proposed allowing the operation of existing stall barns after 2024, if bred female pigs are given opportunities for greater freedom of movement. Previous research demonstrated that sows are moti...
Article
Full-text available
The effect of washing procedure and contamination level on the concentrations of cortisol and dehydroepiandrosterone (DHEA) in swine hair was explored over two studies. Hair shaved from finisher pigs (n = 8) and sows (n = 8, cortisol study 1 only) was split into two treatments (two hair samples/pig) to receive either three isopropanol or methanol w...
Article
Observational studies describing the impact of transport duration on weaned piglet welfare are limited. Current Canadian transport regulations are heavily informed by studies involving market hogs. Due to physiological differences between weaned piglets and market hogs, additional data on their response to transport are needed for age-specific evid...
Article
Despite being phased out in the EU, several states in the USA and other select countries such as Australia, gestation stalls remains a common sow housing system worldwide. In Canada, the 2014 Code of Practice for the Care and Handling of Pigs permits the operation of existing stall barns, provided that bred female pigs are given opportunities for a...
Article
The objective of the study was to determine hair cortisol concentrations in sows in two different housing systems. Sows (n = 66, parity 0–6) were housed at the SDSU sow facility and assigned to one of two housing systems, stalls (STL) or group pens (PEN). The STL sows (n = 34) were housed in gestation stalls from breeding until d111 ± 1.1 of gestat...
Chapter
This chapter reviews developmental influences on pig behaviour. It begins by discussing prenatal environmental effects on development of pig behaviour, focusing on aspects such as pre-conception and post-conception environments on offspring and piglet behaviour. It also touches on prenatal housing conditions, maternal nutrition, heat stress, infect...
Article
Ninety steers (259.9 ± 36.18 kg BW) were used in a 56-d experiment to assess the effects of flavoring additives on feeding behavior, feed efficiency, growth performance, and temperament of newly arrived feedlot cattle. Steers were homogenously distributed by BW into six pens (15 head/pen) and pen was randomly assigned to one of 3 treatments (2 pens...
Article
Full-text available
The goal of this study was to identify practical enrichments for sows in partially or fully slatted pen systems. Four treatments were applied: (1) Constant: constant provision of wood on chain; (2) Rotate: rotation of rope, straw and wood enrichments; (3) Stimulus: rotation of enrichments (as in Rotate) with an associative stimulus (bell or whistle...
Article
Full-text available
Severe shoulder lesions in sows are manifested as ulcers comparable to pressure ulcers in humans. In sows, shoulder lesions appear on the skin overlying the bony prominence of the scapula, and are most commonly observed in the first weeks of lactation. Shoulder ulcers arise due to prolonged compression of blood vessels around the tuber of the scapu...
Article
The objectives were to (1) investigate the effectiveness of hair cortisol concentration (HCC) as a measure of long-term stress in beef cattle, and (2) determine whether meloxicam would decrease post-castration stress. Bull calves on two farms, site 1: Hereford cross (n=73), site 2: Black Angus (n=85) were assigned to three treatments: (1) surgical...
Article
The authors would like to add that “Sebastien Goumon was supported by Grant No MZERO0716 from the Czech Ministry of Agriculture” in the Acknowledgement Section of their paper published in Animals [...]
Article
Full-text available
Oral sucrose was evaluated for its ability to reduce pain following castration. Piglets (n = 126) were assigned to one of five treatments: 1) castrated and given 3 ml of water (C); 2) castrated with 3 ml of 30% sucrose before castration (sucB); 3) castrated and given 3 ml of 30% sucrose after castration (sucA); 4) sham castrated and given 3 ml of w...
Article
Full-text available
The objective of this study was to assess the effects of the season, travel duration and trailer compartment location on blood creatine-kinase (CK), lactate and cortisol concentrations in 384 pigs and assess their relationships with trailer temperature, heart rate and gastrointestinal tract temperature (GTT), behavior, carcass damage scores and mea...
Article
Abstract: The objective of this study was to assess the effects of the season, travel duration and trailer compartment location on blood creatine-kinase (CK), lactate and cortisol concentrations in 384 pigs and assess their relationships with trailer temperature, heart rate and gastrointestinal tract temperature (GTT), behavior, carcass damage scor...
Book
Can we improve the health and welfare of livestock while increasing production? Can we maintain animal biodiversity in the face of increasing demands for resources and expanding agriculture? Can we use animal behaviour to reduce the carbon footprint of livestock production? Applied ethology is a young, multidisciplinary science that is relevant to...
Article
A novel behavioural test using a handling chute was evaluated over two trials as an objective method to assess pain in piglets following castration. Piglet (n = 98) navigation time (NT) through a handling chute was measured at specific time points up to 24 h post treatment. In trial 1, comparing the NT of castrates (C) and sham castrates (SC), C pi...
Article
This technical note describes the development of a novel spreadsheet-based financial simulation model that estimates the cost of pig production in five free-farrowing systems in comparison to standard sow housing in a farrowing crate. The model was developed to address the recognised deficiency in financial information on free-farrowing systems, an...
Article
Full-text available
The majority of indoor sows in the UK (around 95 per cent) farrow in conventional farrowing crates. There is pressure from a number of quarters – EU and national regulators, supermarket buyers and consumers – to improve the welfare of sows by adopting ''free'' farrowing systems. A DEFRA-funded project (under the acronym PigSAFE) conducted by Newcas...
Article
Full-text available
New livestock housing systems designed to improve animal welfare will only see large-scale commercial adoption if they improve profitability, or are at least cost neutral to the farm business. Economic evaluation of new system developments is therefore essential to determine their effect on cost of production and hence the extent of any market prem...
Article
The effective use of pooled oral fluid (OF) in disease surveillance requires that samples are representative of the group. The aim of this study was to develop a 'rope presentation' protocol to maximise the number of different pigs sampled from a pen of animals. Eight pens of grower pigs in 'fully slatted' accommodation (FS) and 'straw-kennels' (SK...

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