animal-science

ST. JOSEPH, Mo. — The American Angus Association® honors Leech Farm with a Historic Angus Herd Award. The Association’s Historic Angus Herd Award recognizes breeders and immediate families who have been in continuous production of registered Angus cattle for 50 years or more. Leech Farm was established in 1969 in Washington, Pa., when Robert Leech, Jr., […] The post Pennsylvania Farm Recognized a…

CHAMBERSBURG, Pa. — Franklin County 4-H livestock exhibitors showcased months of hard work, dedication, and livestock management skills during the 2026 Franklin County 4-H Livestock Roundup, held August 7 and 8 at the Chambersburg Rod & Gun Club, home of the Franklin County Fair. The annual Roundup featured market goat, sheep, beef, and swine exhibitions, […] The post Franklin County 4-H Members …

OnLine Journal of Biological Sciences, Published online: 10 August 2026; doi:10.3844/ajavsp.2026.21.02.020 Crossbreeding dairy cattle with specialized beef breeds is an effective strategy to increase beef production, yet data on muscle growth patterns in crossbred heifers remain limited. This study aimed t...

American Journal of Animal and Veterinary Sciences, Published online: 9 July 2026; doi:10.3844/ajavsp.2026.21.02.013 Context: Puberty and sexual maturity are very important economic aspects in the beef industry and bull production. The aim of this study was to characterize and determine the sexual development of Bos...

This study aimed to investigate the effects of dietary phytosterol (PS) supplementation on growth performance, meat quality, and lipid metabolism in finishing pigs and to explore the potential mechanisms. Forty-eight barrows with an initial body weight of 73.96 ± 2.80 kg were randomly allocated to two treatments, with six replicate pens of four pigs per pen: the CON group fed a basal diet, and th…

IntroductionAs a core nutrient regulating ruminant metabolic networks, immune homeostasis, and rumen microbial community structure, the source and supply of protein influence the adaptive capacity of breeding cows to metabolic stress during physiological transitions in the peripartum period.MethodsSixty healthy, periparturient cows with similar body weights (573.14 ± 76.67 kg) and gestation lengt…

Scientific Data, Published online: 25 May 2026; doi:10.1038/s41597-026-07469-9 Within-hour incremental movement data of finishing pigs over 20 days using RFID–LoRaWAN technology

IntroductionWeaning from artificial milk feeding represents a critical transition in intensively reared dairy lambs, involving dietary change, relocation, and social reorganization, all of which may compromise welfare, immune status, and growth performance. Melatonin, owing to its anxiolytic, antioxidant, and immuno-modulatory properties, has been proposed as a potential strategy to mitigate stre…

IntroductionGuanidinoacetic acid (GAA), the direct precursor of creatine, has been shown to improve growth performance in monogastric animals, but its metabolic effects in ruminants remain unclear. This study examined whether dietary GAA and rumen-protected GAA (RPGAA) are associated with changes in intestinal creatine-related metabolism, portal nutrient concentrations, and hepatic IGF-1 expressi…

IntroductionBuffaloes are globally important dairy animals, but their low feed nitrogen utilization efficiency and excessive dietary rumen-degradable protein (RDP) results in aggravated nitrogen pollution and high breeding costs. Studies on the optimal RDP levels for 7–10-month-old dairy buffalo heifers remain scarce, limiting precise nutritional management.Materials and methodsDairy buffalo heif…

Kim Stackhouse-Lawson, professor of animal science and director of AgNext at Colorado State University, received the 2026 Trailblazer Award from the Denver Business Journal as part of its annual Leaders in Agriculture program. She was recognized on March 19 at an awards ceremony at CSU Spur. Presented in partnership with the Colorado Farm Bureau, the Leaders in Agriculture awards recognize indivi…

AUBURN UNIVERSITY, Ala. — Thanks to a multi-state research grant, the Animal Science and Forages team of Alabama Extension at Auburn University is making a global impact through research and....

With its broad reach, the Alabama Cooperative Extension System’s Animal Science and Forages team works with new and beginning farmers, as well as those who are established in the industry.....