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Food, fibre and pharmaceuticals from animals
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Animal Production Science

Animal Production Science

Animal Production Science is an international journal publishing original research and reviews on the production of food, fibre and pharmaceuticals from animals. Read more about the journalMore

Editor-in-Chief: Wayne Bryden

Publishing Model: Hybrid. Open Access options available

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Latest

These articles are the latest published in the journal. Animal Production Science has moved to a continuous publication model. More information is available on our Continuous Publication page.

Published online 19 April 2024

AN23349Improving the market for household livestock production to alleviate food insecurity in the Philippines

Minh-Phuong Thi Duong 0000-0003-2487-9905, Ni Putu Wulan Purnama Sari 0000-0002-8869-9607, Adrino Mazenda 0000-0001-7739-9097, Minh-Hoang Nguyen 0000-0002-7520-3844 and Quan-Hoang Vuong 0000-0003-0790-1576
 

We found that the challenges faced in production and selling processes substantially positively affect the likelihood of food insecurity likelihood among livestock smallholders in the Philippines. Nevertheless, the impact of these challenges depends on the degree of food insecurity. The market plays a crucial role in facilitating not only livestock trading but also livestock production (e.g. purchase of feed and medicines). Market mechanisms can be used to alleviate food insecurity among livestock smallholders.

AN23349 Abstract  | PDF (3.5 MB) - $35.00   | AN23349Supplementary Material (956 KB)
Published online 19 April 2024

AN23364Lamb survival and weight at marking may be reduced in ewes lambing on forage oats after grazing lucerne during late pregnancy

Susan M. Robertson 0000-0001-5129-2216, Walter Morton, Michael A. Friend, Bruce Allworth and Marie Bhanugopan
 

Grazing of cereal forage by late-pregnant and lambing ewes is perceived as a risk to perinatal lamb survival. This study investigated whether the duration of grazing ewes on oat forage would reduce lamb survival, and found that grazing oats continuously through late pregnancy and lambing gave similar survival as did grazing legume pasture, whereas grazing oats only during lambing reduced survival. Producers may safely graze oats with late pregnant ewes when supplemented with calcium, magnesium and salt.

AN23364 Abstract  |  AN23364 Full Text  | AN23364PDF (366 KB)   Open Access Article

Published online 19 April 2024

AN23302Relationships among gastrointestinal mucosal densities of mast cells and eosinophils, helminth infection and diarrhoea in sheep

X. Y. Niu, S. M. Liu 0000-0002-6498-4761, J. C. Greeff 0000-0003-4457-8448, D. G. Palmer and G. B. Martin 0000-0002-1905-7934
 

In sheep, the severity of helminth infection is related to eosinophil density in the mucosa of the abomasum and jejunum, the most immunologically active sites in the gastro-intestinal tract. The severity of helminth infection is also related to mast cell density in the mucosa of the duodenum. Eosinophil and mast cell responses to helminth infection help explain ‘hypersensitivity diarrhoea’ in helminth-resistant sheep.

AN23302 Abstract  |  AN23302 Full Text  | AN23302PDF (1.2 MB)   Open Access Article

Published online 12 April 2024

AN23374Cold stress changes the composition and function of microbiota in the content and mucosa of the ileum and colon in piglets

Shiyu Zhang 0009-0001-7694-1697, Yong Li, Jun Wang, Run Zhu, Lan Sun and Jiandui Mi 0000-0002-5918-5295
 

Cold stress of piglets is a serious problem in the breeding industry in many countries, which can lead to a large number of deaths and losses of piglets. Under cold stress, the intestinal microorganisms of piglets will undergo significant changes, and the purine metabolism and fat synthesis pathways will also be up-regulated. Therefore, it is possible to help piglets resist cold stress by adding probiotics and changing diet structure.

AN23374 Abstract  | PDF (6 MB) - $35.00   | AN23374Supplementary Material (984 KB)
Published online 12 April 2024

AN21601Ruminal degradation of maize starch is affected by sowing date

Nicolás E. Rusoci, Aníbal Cerrudo, María Delfina Montiel, Natalia G. Izquierdo and Enrique Pavan 0000-0002-0829-1717
 

The effects of delaying the sowing date of maize on ruminal starch degradability is presented. The information generated in this work complements and extends the knowledge of previous studies that focused on the effects of corn genotype on ruminal starch degradation. As corn sowing date is delayed, ruminal starch degradability shows a ‘J’-shape response. Ruminal starch degradability is negatively correlated with grain physical characteristics and with the source:sink ratio.

AN21601 Abstract  | PDF (342 KB) - $35.00 
Published online 21 March 2024

AN23272Efficacy of a capsicum extract on growth, blood parameters and intestinal bacterial population of broilers

Kris Angkanaporn 0000-0001-9195-136X, Thanida Nampimoon and Siraphop Sirirut
 

We aimed to discover how capsaicin, a compound found in chili peppers, can positively affect broiler growth performance. Our research showed that incorporating capsaicin into the diet of broilers raised in tropical climates leads to improved weight gain and reduced heat stress by increased water intake. This offers a promising solution to optimise poultry production and sustainability in these challenging environments.

AN23272 Abstract  | PDF (1.3 MB) - $35.00 
Published online 15 March 2024

AN22405Morphometry of newborn piglets and its relevance at weaning: new approach

Lucas Melo e Silva 0000-0003-3105-4020, Pedro Henrique da Silva Fidelis 0000-0002-1760-6311, Lígia Vanessa Leandro Gomes 0000-0001-7914-1356, Gleyson Araújo dos Santos 0000-0003-2132-4779, Rodrigo Fortunato de Oliveira 0000-0001-9608-5827, Amanda Medeiros Araújo de Oliveira 0000-0001-7349-5559, Elias Silva de Medeiros 0000-0002-9694-4019, Marcelle Santana de Araújo 0000-0002-5195-4256 and Rennan Herculano Rufino Moreira 0000-0001-7144-5750
 

Search for tools to improve the productivity of the pig herds has been the subject of many studies. Development of suckling piglets influences their subsequent post-weaning performance, influencing the nursery, growth and finishing phases, and, consequently, the yield and quality of the swine carcass. Use of morphometric parameters to predict the probability of each weight class occurring at weaning can help manage piglets to increase the probability of their reaching a heavy weight class.

AN22405 Abstract  | PDF (832 KB) - $35.00 
Published online 15 March 2024

AN23322Hepatocyte growth factor (HGF) gene: molecular characterisation of complete coding sequence and expression profile in Tarim red deer (Cervus hanglu yarkandensis) antlers

Chuan Lin 0000-0002-6761-8775, Miao Wang 0000-0001-8890-7253, Xue Rui 0000-0002-1668-4270, Hong Chen 0000-0002-1623-507X, Hao Lv 0000-0003-1804-8865, Fei Huang 0000-0002-2611-0617, Qinghua Gao 0000-0003-4746-7700 and Chunmei Han 0000-0002-6470-7414
 

In this study, researchers successfully obtained the full-length cDNA sequence of the hepatocyte growth factor (HGF) gene and examined the expression profile of HGF and its receptor c-Met in different antler tissues. The results showed that HGF and its receptor c-Met were expressed in all antler tissues, with the highest expression in the velvet skin. The findings provide foundational data for understanding the potential role of HGF in regulating antler growth and development.

AN23322 Abstract  | PDF (2.5 MB) - $35.00   | AN23322Supplementary Material (756 KB)
Published online 07 March 2024

AN23269Similar feed-intake levels yield no differences in energy utilisation between beef heifers identified as low (efficient) and high (inefficient) for residual feed intake

T. P. Vining 0009-0003-9981-4089, P. A. Lancaster 0000-0002-2871-6065, N. DiLorenzo, G. C. Lamb and J. M. B. Vendramini
 

The resources needed to produce feed account for the largest variable cost in livestock production. The ability to identify animals that maintain adequate levels of production but consume less feed could lead to greater conservation of feed resources and improved herd profitability. Residual feed intake, a commonly used trait to select for improved feed efficiency, could increase maintenance-energy requirements. Therefore, cattle selected for improved performance on the basis of RFI may not demonstrate expected gains in energetic efficiency.

AN23269 Abstract  | PDF (341 KB) - $35.00 
Published online 07 March 2024

AN22455Geographic distribution of a missense mutation in the KRT38 gene in Chinese indigenous cattle breeds

Jialei Chen, Xin Liu, Jianyong Liu, Jicai Zhang, Bizhi Huang 0000-0003-4308-2838 and Chuzhao Lei 0000-0003-1647-1037
 

China has an extensive area across many temperature zones and a variety of cattle breeds, which are ideal models to study their adaptability to different environments. We successfully obtained the frequency of a single-nucleotide polymorphism in three groups of cattle in China. The frequency of allele A decreased gradually from north to south, whereas that of allele G showed the opposite trend. Our study will contribute to evaluating it as a genetic marker of heat tolerance for cattle breeding and genetics.

AN22455 Abstract  | PDF (1.3 MB) - $35.00   | AN22455Supplementary Material (605 KB)
Published online 07 March 2024

AN23378The influence of loading, road transport, unloading and time in lairage on body temperature in finished feedlot steers

S. L. Bonner, I. D. Loxton, A. Lisle, R. J. Lawrence, A. M. Lees 0000-0003-4898-2843 and J. B. Gaughan 0000-0001-5395-6901
 

Road transport has long been recognised as a stressor for cattle. However, investigation into heat stress during road transport and within trailer microclimates has received limited attention. Here cattle body temperatures are shown to increase during handling and loading. In addition, cattle positioned on the upper deck had higher body temperatures when compared with cattle on the lower deck. External climatic conditions were a greater driver of microclimate for the upper and lower decks.

AN23378 Abstract  |  AN23378 Full Text  | AN23378PDF (514 KB)   Open Access Article

Published online 23 February 2024

AN23235Does the immune stimulant Amplimune® modulate humoral and cytokine responses to commercial bovine respiratory disease vaccines in cattle?

A. L. Alexander 0000-0003-1238-6783, E. K. Doyle 0000-0002-5255-2187, A. B. Ingham 0000-0001-8006-9443, I. G. Colditz 0000-0001-9497-5148, N. M. Andronicos 0000-0001-5881-2296, B. C. Hine 0000-0001-5037-4703 and T. J. Mahony 0000-0003-4573-7906
 

Most vaccines do not confer immediate protection in the host; however, concurrent administration of immune stimulants may enhance or impair immune responses to those vaccines. Bovine respiratory disease (BRD) is costly for Australian cattle and, in this trial, concurrent vaccination against BRD with the stimulant Amplimune was investigated and found to have no detrimental effect on immune responses. These findings warrant further examination of the effect of Amplimune on morbidities and mortalities in feedlots.

AN23235 Abstract  |  AN23235 Full Text  | AN23235PDF (718 KB)  | AN23235Supplementary Material (587 KB)   Open Access Article

Published online 20 February 2024

AN23129An initial investigation into the use of machine learning methods for prediction of carcass component yields in F2 broiler chickens

Hossein Bani Saadat 0000-0001-9034-0372, Rasoul Vaez Torshizi 0000-0003-2781-7558, Ghader Manafiazar 0000-0003-4681-8214, Ali Akbar Masoudi 0000-0002-3935-0476, Alireza Ehsani 0000-0001-6933-3469 and Saleh Shahinfar 0000-0003-0730-7577
 

Evaluation of carcass component yields is costly and time consuming, thus models for the prediction of broiler carcass yields are useful. Three advanced predictive models were applied to predict carcass component yields, and benchmarked against the classical linear regression. Random forest had the best performance among machine learning methods, suggesting that it may be considered as an alternative to conventional linear models for prediction of carcass yields in broiler chickens. In all of the predictive model tested in this study, inclusion of single-nucleotide polymorphisms as predictor features lowered the predictive performance of the model.

AN23129 Abstract  | PDF (2.3 MB) - $35.00 
Published online 16 February 2024

AN23176Milk composition and health status of quarters adjacent to an on-farm protocol-treated clinical-mastitis gland

Marcel Gomes Paixão 0000-0001-6800-3716, Renata Golin Bueno Costa, Guilherme Nunes de Souza, Sandra Maria Pinto and Luiz Ronaldo de Abreu
 

Bovine mastitis is the disease that causes the most economical losses to dairy farmers, including veterinary expenses, milk disposal, loss of production and reduction of animal pregnancies. The milk composition of mammary quarter affected by mastitis is not the only one compromised, as the milk quality of entire udder is also affected. A period of 20 days is not enough for animals to fully recover from a case of udder inflammation. Mastitis is more costly to producers and industry than has been previously reported.

AN23176 Abstract  | PDF (422 KB) - $35.00 
Published online 16 February 2024

AN23207Genetic parameters for milk production and body-conformation traits in Dairy Gir cattle

P. Dominguez-Castaño 0000-0002-5675-7702, M. Fortes 0000-0002-7254-1960, A. M. Toro-Ospina and J. A. II. V. Silva
 

Body-conformation traits in dairy cattle have been associated with health, welfare, and cow longevity, thus affecting herd productivity. The heritability estimates of this study indicated that body-conformations traits could respond to selection. Moreover, the correlations between these traits and milk yield highlighted the importance of considering the correlated response to selection, synergies, and trade-offs between body conformation traits and milk production in Gir cattle. This information is relevant for selective breeding in Gir cattle to enhance tropical milk production.

AN23207 Abstract  | PDF (365 KB) - $35.00   | AN23207Supplementary Material (699 KB)

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