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Persistently high concentrations of β-hydroxybutyrate affect hepatic SOD2 expression and blood SOD activity in high-yielding dairy cows.
BMC Vet Res
January 2025
Department of Large Animal Diseases and Clinic, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, 02-787, Poland.
Background: Elevated BHB levels are hypothesized to influence hepatic antioxidant enzyme expression and activity, contributing to oxidative response. However, the impact of BHB between 0.8 and 1.
View Article and Find Full Text PDFAlterations in the uterine echotexture, hemodynamics, and histological findings in relation to metabolomic profiles in goats with different ovarian activities (active versus inactive ovaries).
Vet Res Commun
January 2025
Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-Cho, 183-8509, Fuchu, Tokyo, Japan.
This study investigated, for the first time, the alterations in the uterine echotexture and blood flow in cyclic and acyclic (inactive ovary) goats using ultrasonography. The study aimed also to evaluate the metabolomic changes in the plasma of cyclic and acyclic goats. Furthermore, the histopathological approach was applied to the specimens of the uterus to validate the findings of this study.
View Article and Find Full Text PDFUpdate to RIFM fragrance ingredient safety assessment, linalyl isobutyrate, CAS Registry Number 78-35-3.
Food Chem Toxicol
January 2025
Member Expert Panel for Fragrance Safety, The Journal of Dermatological Science (JDS), Department of Dermatology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan.
When to pair: Effects of different pairing ages on dairy calf health, behavior and performance.
J Dairy Sci
January 2025
EthoLab - Applied Ethology and Animal Welfare Lab, Graduate Program in Animal Science, School of Medicine and Life Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, 80215-901, Brazil. Electronic address:
Pair housing presents an alternative to individual or larger group housing systems, though the effects of different pairing ages on calf welfare are not well understood. In this study, we examined the impact of pairing age on the performance, health, and behavior of dairy calves. A total of 140 Holstein female calves (n = 70 pairs) were used, paired at 3 ages: Early (6-7 d; 48 calves), Intermediate (29-30 d; 48 calves), and Late pairing (49-50 d; 44 calves).
View Article and Find Full Text PDFThe distribution of pigeon adenoviruses in Northern Chinese pigeon and turtledove flocks provides further evidence of viral crosstransmission.
Am J Vet Res
January 2025
National Research Center for Wildlife-Borne Diseases, Institute of Zoology, Chinese Academy of Science, Beijing, China.
Objective: To understand the prevalence, genetic diversity, and potential pathogenicity of adenoviruses present in pigeon and turtledove populations.
Methods: Nested PCR and Sanger sequencing methods were used to identify the genotype and percentage of various adenoviruses in the feces of pigeon (Columba) and turtledove (Streptopelia) populations. In Beijing, China, a total of 194 fresh feces samples from meat-use pigeons (C livia domestica), homing pigeons (C livia domestica), wild pigeons (C livia domestica), and turtledoves (S decaocto and S chinensis) were collected using noninvasive sampling collection techniques.
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