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Feed efficiency and resilience in dairy ewes subjected to a nutritional challenge.
J Dairy Sci
January 2025
Instituto de Ganadería de Montaña (CSIC-University of León), Finca Marzanas s/n, 24346 Grulleros, León, Spain.
It is currently uncertain how selection of more efficient animals might impact other traits such as resilience (which, in this context, is defined as the ability of an animal to sustain or revert quickly to its previous production level and health status after a disturbance), especially in small ruminants. However, improving, or at least maintaining, resilience is of utmost importance to ensure livestock production in the face of external perturbances, which are expected to become more prevalent in the near future due to climate change and global instability. This study was conducted to investigate whether a nutritional challenge consisting of animals receiving only 70% of their voluntary feed intake (DMI) for 26 d, might differentially affect the response of high- and low-feed efficiency (FE) sheep.
View Article and Find Full Text PDFResearch Note: Evaluation of selected chlorhexidine salts/product and/or cetylpyridinium chloride as potential pre-slaughter crop disinfection agents using an in vitro assay simulating crop contents.
Poult Sci
December 2024
Department of Poultry Science, University of Arkansas Division of Agriculture, Fayetteville 72701, USA.
Salmonellae remain a prominent issue for poultry products regarding food safety. A predominant source of broiler carcass contamination at processing is from crop rupturing and subsequent contamination of the carcass during evisceration. Chlorhexidine (CHX) salts are commonly used in dental products for their antimicrobial capabilities.
View Article and Find Full Text PDFEffect of grain vinegar feeding on milk production and fatty acid profile of Holstein cows.
J Anim Sci Technol
November 2024
Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-0808, Japan.
Incorporating organic acids into cattle feed should be carefully considered because dietary organic acids may affect voluntary feed intake and rumen fermentation. We conducted a feeding trial for the practical evaluation of grain vinegar. Lactating Holstein cows (n = 19) were divided into two groups, then were subjected to each of two treatments in a crossover design.
View Article and Find Full Text PDFEffects of Synthetic CpG Oligodeoxynucleotide K3 on Immune Response, Behavior, and Physiology in Male Layer Chicks ().
J Poult Sci
December 2024
School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg 24061, Virginia, United States of America.
Unmethylated cytosine-phosphate-guanine (CpG) motifs are often found in bacteria and viruses, but are rare in mammals. In mammals, CpG oligodeoxynucleotides (CpG ODN) stimulate the innate immune system via toll-like receptor 9 (TLR9). However, TLR9 is absent in birds; instead, TLR21 serves as the receptor for CpG ODN.
View Article and Find Full Text PDFInvestigation of awareness, sanitation, and customer education practices among employees of pet and animal feed stores that sell live animals in the United States.
BMC Public Health
December 2024
Center for Agriculture and Food Security and Preparedness, Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, USA.
Article Synopsis
- The study examined the awareness, sanitation practices, and education efforts regarding zoonotic disease risks among employees at pet and animal feed stores that sell live animals.* -
- Surveys of 206 employees revealed that handwashing and perceived disease risk were significantly higher in workplaces with specific hygiene policies and training.* -
- Key factors influencing employees' likelihood to educate customers included supervisory roles, higher perceived disease risks, and the frequency of sanitation practices.*
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