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#Enzymes in poultry nutrition
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Article published the March 13, 2024
I. INTRODUCTIONA hen’s physiological patterns including FI and BW trajectory are established by early lay (Muir et al. 2022). Therefore, management tools such as lighting and feeding programs during rearing may offer opportunities to regulate bird size and establish feeding habits by the end of rearing. This may also influence persistency of lay, egg quality and hen health during an extended ...
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This member gave a presentation on February 20, 2024
At the following event:
35th Annual Australian Poultry Science Symposium
Article published the August 8, 2023
I. IntroductionPullet body weight (BW) has significant impact on hen sexual maturity, egg productivity and flock uniformity (Lacin et al. 2009). Australian layer flocks are frequently 100-300 grams heavier than breed standard weight (BSW) (Parkinson et al. 2015). These birds typically lay larger eggs than LW hens and higher BW is symptomatic of bird obesity which can result in the production of ex ...
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Article published the August 4, 2023
Salmonella serotypes vary throughout the livestock industry. Historically Salmonella Enteritidis is not considered to be prevalent in Australian poultry flocks. As recently as 2018 a novel S. Enteritidis emerged in the industry (FSANZ, 2019). Although, there are no specific vaccines available in Australia against this serotype in poultry, the use of live attenuated Salmonella vaccines that have th ...
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This member gave a presentation on February 6, 2023
At the following event:
34th Annual Australian Poultry Science Symposium
Article published the January 6, 2023
1. IntroductionThe occurrence of ‘wet litter’ in meat chicken sheds is associated with concerns regarding animal welfare, flock health, food safety, environmental impacts and reductions in production efficiency. Mitigating wet litter will only be achieved when there is thorough understanding of the multidimensional causal factors. This will require a multidisciplinary approach to under ...
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Article published the October 21, 2022
I. INTRODUCTION Optimum BW is an important consideration in achieving early maturity, high productivity and uniformity in laying hens (Lacin et al., 2009). Parkinson et al. (2015) noted that it was common for Australian flocks to have an average body weight (BW) 100-300 grams above the breed standard weight (BSW). This higher BW is indicative of bird obesity and is associated with the production o ...
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Article published the August 12, 2022
Compromised leg health is a welfare and economic concern for meat chickens. Enrichment of the production environment via the provision of perches has been a focal point of research into reducing the prevalence of leg disorders in recent years. Despite inconsistent evidence of the effect of perches (Groves and Muir 2013; Phibbs et al. 2019), they are provided in almost two thirds of the Australian ...
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Article published the October 22, 2021
Bacterial chondronecrosis with osteomyelitis (BCO) is an infective leg condition that results in lameness, affecting meat chickens internationally. BCO can be induced using mechanical challenges such as wire ramps (Wideman 2016). Based on a study wherein perches had a negative impact on bird latency to lie (LTL) at 42 days (d) old (Phibbs et al. 2020) perches may be a mechanical challenge to birds ...
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Article published the October 12, 2021
Method detailsSalmonella spp. cause fowl typhoid and pullorum diseases in poultry and are responsible for nontyphoidal Salmonella infection in humans. Prevention of Salmonella infection in chicken flocks is an important step in reducing salmonellosis outbreaks in humans. Vaccination with live attenuated vaccine of certain strains such as e.g. S. Enteritidis, S. Typhimurium and S. Gallinarum has be ...
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Location:Sydney, New South Wales, Australia
Profile: Academic / scientific
Occupation: Senior Lecturer in Poultry Health
Participations in events:
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