Thomas M. Banhazi

Thomas M. Banhazi
University of Southern Queensland  · National Centre for Engineering in Agriculture (NCEA)

PhD

About

126
Publications
81,774
Reads
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1,586
Citations
Additional affiliations
January 1992 - May 2012
South Australian Research and Development Institute
Position
  • Senior Researcher

Publications

Publications (126)
Article
Full-text available
Robotic milking systems (RMS) are increasingly utilised by modern livestock farmers because they can reduce labour costs, and they have the potential to collect data that will improve animal welfare and animal productivity through better monitoring. Sensors and devices installed in RMS enable farmers to routinely collect data on environment conditi...
Article
Full-text available
Heat stress is usually assessed using thermal comfort indices (TCIs) that calculate integrated values of temperature, humidity, wind speed and solar radiation. However, the negative effect of heat stress is related not only to the intensity but also the duration of heat stress endured, as well as the accumulated influence from previous time periods...
Article
Full-text available
Heat stress is a significant challenge in dairy farming systems. Dairy cows under heat stress will encounter impaired welfare leading to production losses. As the frequency and magnitude of heat stress events increase in the coming decades, a focus on heat stress reduction studies becomes important. Modelling and on-farm experiments have been used...
Article
Full-text available
Robotic milking systems (RMS) have been demonstrated to reduce on-farm labour requirements and collect significant individual-level data in relation to animal health, welfare and production, but they are still largely underutilised. Studies on the relationship between heat stress, animal behaviour and robotic milking performance in a RMS are still...
Article
Full-text available
Past publications describe the various impact of feeding behavior of broilers on productivity and physiology. However, very few publications have considered the impact of biomechanics associated with the feeding process in birds. The present study aims at comparing the kinematic variables of young broiler chicks (3–4 days old; 19 specimens) while f...
Article
Full-text available
Thresholds of heat stress are identified by determining the values of thermal comfort indices with significant change of animal responses. However, published thresholds may lead to inaccuracy when dealing with specific climate conditions, animal breeds and production factors. Thus, determining dynamic thresholds might provide better assessment of h...
Article
Full-text available
Thermal comfort indices (TCIs) have been developed to assess heat stress and model the relationship between thermal parameters (e.g. dry-bulb temperature) and animal responses (e.g. daily milk yield, DMY). The published models typically include temperature humidity index (THI), black globe humidity index, environmental stress index, equivalent temp...
Article
Full-text available
The main objective of this study was to identify the influences of different climatic conditions and cow-related factors on the respiration rate (RR) of lactating dairy cows. Measurements were performed on 84 lactating Holstein Friesian dairy cows (first to eighth lactation) in Brandenburg, Germany. The RR was measured hourly or twice a day with up...
Chapter
Noise, dust and odor emission/pollution from outdoor piggeries has been acknowledged as a potential issue for the free-range pig industry, especially during the planning stage. However, data that can help the industry to assess the likely noise, dust and odor emission levels from free-range piggery facilities are not available in Australia. Previou...
Book
Full-text available
Air quality has a direct influence on the health, welfare and performance of animals as well as on the health of farm workers undertaking different tasks in livestock buildings. Furthermore, air pollutants emitted from livestock buildings can reduce air, water and soil quality and potentially undermine the health of nearby residents. There is ample...
Article
Full-text available
The microclimatic conditions in dairy buildings affect animal welfare and gaseous emissions. Measurements are highly variable due to the inhomogeneous distribution of heat and humidity sources (related to farm management) and the turbulent inflow (associated with meteorologic boundary conditions). The selection of the measurement strategy (number a...
Conference Paper
Full-text available
Modern poultry and livestock farming can generate varied concentration and amount of air pollutants including gases, odor, and dust. This paper provides an overview of current studies about the influence, mitigations and modellings of ammonia (NH3) and dust. Studies conducted in laboratory and field measurement are included. According to current st...
Conference Paper
Full-text available
Regular occurrence of heat stress conditions is a significant challenge in dairy farming. Dairy cattle under heat stress will encounter sub-optimal welfare that can ultimately results in production loss for farmers. In precision livestock farming (PLF), studies aimed at modelling the influence of heat stress have been undertaken for several decades...
Article
Full-text available
In the public debate about modern animal production methods, the voice of the farmer is rarely heard. Little is known about the daily work and economic pressure the single farmer is exposed to and what he thinks and feels about the increasingly complex production systems with demanding new control and monitoring technologies such as PLF. In a limit...
Chapter
Full-text available
Contemporary scholarship is replete with accounts and analyses of the challenges and complexities of current academic life. Much of this scholarship sounds alarm bells – even clarion calls – with regard to the sustainability and value of academics’ work. For example, Olson (2013) lamented that “Academe is often plagued by inexcusably rude and uncol...
Article
Full-text available
The impact of air quality on the health, welfare and productivity of livestock needs to be considered, especially when livestock are kept in enclosed buildings. The monitoring of such environmental factors allows for the development of appropriate strategies to reduce detrimental effects of sub-optimal air quality on the respiratory health of both...
Article
Full-text available
Air quality in many poultry buildings is less than desirable. However, the measurement of concentrations of airborne pollutants in livestock buildings is generally quite difficult. To counter this, the development of an autonomous robot that could collect key environmental data continuously in livestock buildings was initiated. This research presen...
Article
Full-text available
Previous studies have demonstrated the negative effects of sub-optimal air quality on profitability, production efficiency, environmental sustainability and animal welfare. Experiments were conducted to assess potential environmental improvement techniques such as installing oil-spraying systems in piggery buildings. The developed spray system work...
Article
Full-text available
Several studies have quantified the energy consumption associated with crop production in various countries. However, these studies have not compared the energy consumption from a broad range of farming practices currently in practice, such as zero tillage, conventional tillage and irrigated farming systems. This study examines direct on-farm energ...
Article
Full-text available
The behaviour of broiler chickens has been extensively studied as a function of stocking density and environmental conditions, but limited information was reported in the scientific literature about the effect of feeder type on birds’ feeding process. The main objective of this study was to assess the effects of three different feeder types in rela...
Conference Paper
Full-text available
Agriculture and environment issues are becoming increasingly important and are facing some new challenges. It is believed that wireless Sensor Networks (WSNs) and machine automation are among the key enabling technologies to address these challenging issues. Although extensive research has been conducted on individual technologies, their seamless i...
Article
Full-text available
Feed related costs are the main drivers of profitability of commercial poultry farms, and good nutrition is mainly responsible for the exceptional growth rate responses of current poultry species. So far, most research on the poultry feeding behaviour addresses the productivity indices and birds' physiological responses, but few studies have consid...
Article
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This review shows the theoretical background for development of lumped ventilation models that can be integrated into models that aim to aid either design or operation of low emission naturally-ventilated buildings. The strength of lumped parameter modelling methods is that they have the potential to include effects of varying outdoor climate condi...
Article
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The present article describes the current research focus and the future research trends associated with investigating emissions from naturally ventilated buildings as identified at the technical session entitled "Emission from naturally ventilated buildings (Measurement, modelling, reduction and assessment)", that was held during the International...
Article
Full-text available
Gaseous emissions from livestock buildings are a major environmental concern worldwide and an increasing number of countries have now introduced legislation that aims to reduce the emission of pollutants like ammonia. This paper is the first of a series of three reviews focussing on the utilisation of different modelling techniques to estimate ammo...
Article
Full-text available
The purpose of this review paper is to identify current capabilities of Computational Fluid Dynamics (CFD) modelling techniques and areas where further scientific research is required, in order to identify how best CFD can be utilised in the future as a comprehensive modelling tool that enables naturally ventilated (NV) livestock buildings to be de...
Chapter
Full-text available
The negative effects of high concentration of airborne pollutants on animal health, welfare and productivity are well documented. Reducing the concentration of airborne pollutants in livestock buildings is therefore an important task and could also help to reduce the occupational health and safety risk associated with farm work. The main objective...
Chapter
Full-text available
The combined effects of a number of housing related parameters were evaluated in relation to the production efficiency of pigs under commercial farm conditions. These parameters included, air temperature, stocking rate, stocking density and the concentrations of different airborne pollutants. The commercial piggery buildings were divided into two s...
Chapter
Full-text available
A number of studies have demonstrated improved production efficiency and reduced respiratory problems in pigs reared in a clean building. There are a limited number of investigations in the literature that specifically evaluate different cleaning methods and their efficiency in reducing bacterial load on floor surfaces in livestock buildings. Studi...
Chapter
Full-text available
Drinking water temperature was measured continuously for one year on 22 pig farms in South Australia (SA) and Queensland (QLD) and data were collected on major housing features and management factors employed in individual piggery buildings. The data collected enabled the likely effects of housing and management factors on resulting water temperatu...
Chapter
Full-text available
External and internal air temperatures were measured continuously for one year (between January 1999 and December 1999) in 48 piggery buildings in South Australia using selfcontained data-loggers with built-in sensors. Data was consolidated to correspond with the four seasons. Regression values between the external and internal temperatures were ca...
Chapter
Full-text available
The main aims of the research presented here were: (1) to model the effects of important housing and management factors on the hygiene level of pig pens; and (2) to evaluate the efficacy of methods aimed at improving pen hygiene. These project aims were achieved by: (1) modelling the hygiene levels measured; and (2) conducting a number of controlle...
Book
Appropriate housing that promotes excellent health and high welfare for different livestock species is an essential aspect of sustainable animal production. The appropriate design of livestock buildings is a fast changing and ever improving professional endeavour. This book is set out to review the 'current best practice management' in relation to...
Article
Full-text available
Manure additive products can be used to reduce odour emissions (OE) from livestock farms. The standardised evaluation of these manure additive products under specific farm conditions is important. In this study, the efficacy of a manure additive (WonderTreat™, CKLS, Inc., Hong-Kong) was assessed under Australian conditions utilising a combination o...
Article
Full-text available
High concentrations of airborne particles in poultry building can affect the environmental sustainability of the operation, production efficiency, and the health and welfare of the birds. In addition, sub-optimal air quality can create occupational health and safety (OH&S) risks for farm workers. It was hypothesised that a systematic study of the r...
Article
Full-text available
To identify the most practical and representative sampling locations for air quality and environmental variables inside intensive piggery buildings, the variation in the spatial, diurnal and seasonal concentration of major airborne pollutants, and related environmental parameters, were analysed over a 2.5-day period at several locations within diff...
Article
Full-text available
Precision Livestock Farming (PLF) is potentially one of the most powerful developments amongst a number of interesting new and upcoming technologies that have the potential to revolutionise the livestock farming industry. If properly implemented, PLF or Smart Farming could (1) improve or at least objectively document animal welfare on farms; (2) re...
Conference Paper
Concentrations and emissions of airborne endotoxins and microorganisms within and from 160 piggery buildings were surveyed in four states of Australia. Respirable dust samples collected on filter papers in the buildings were used to determine endotoxin concentrations. The total airborne microorganisms were measured using six-stage Andersen sampler....
Article
Full-text available
In order to be able to produce safe, uniform, cheap, environmentally- and welfare-friendly food products and market these products in an increasingly complex international agricultural market, livestock producers must have access to timely production related information. Especially the information related to feeding/nutritional issues is important,...