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Breed and trace mineral source influence the performance of beef heifers during periods of nutrient restriction and grazing forage at early vegetative stage.
J Anim Sci
January 2025
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, SP 18618-970, Brazil.
We evaluated the effects of breed and mineral source on heifer performance during periods of nutrient restriction and grazing. On day -7, ½ Angus × ½ Nelore (ANE) and Nelore (NE) heifers (12 heifers per breed; body weight, BW = 264 ± 35 kg; age = 15 ± 1 mo) were assigned to individual drylot pens to receive ad libitum Tifton 85 (Cynodon sp.) hay and white salt for 7 days.
View Article and Find Full Text PDFEffect of weaning strategies on biosynthesis of oxylipids in Holstein dairy calves.
JDS Commun
January 2025
Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, ID 83844.
The aim of this study was to determine the effect of the weaning calves at 2 ages (early vs. late) and 2 weaning paces (abrupt over 3 d vs. gradual over 14 d) on plasma oxylipids.
View Article and Find Full Text PDFTemporal patterns of liver and adipose lipase abundance across the periparturient period in multiparous Holstein dairy cows.
JDS Commun
January 2025
Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, WI 53706.
Lipases such as patatin-like phospholipase domain-containing protein 3 (PNPLA3) exist in multiple tissue types. In subcutaneous adipose tissue, PNPLA3 was not altered during the periparturient period. Conversely, strong associations between liver PNPLA3 and liver triglyceride content peripartum were identified and confirmed to be causative using knockdown approaches in a primary bovine hepatocyte model.
View Article and Find Full Text PDFThe use of ultrasonography in the transition period to estimate adipose tissue depots and their association with risk of early postpartum hyperketonemia in Holstein dairy cattle.
JDS Commun
January 2025
Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853.
An elevated prepartum BCS is a risk factor for postpartum hyperketonemia (HYK) and elevated nonesterified fatty acid (NEFA) concentrations in dairy cattle. The association between different adipose tissue depots, such as subcutaneous (SCAT) as well as visceral adipose tissue (VAT) depots, and HYK and elevated NEFA concentrations remains unknown. The objective of this 2-part study was to describe SCAT and VAT depots using ultrasonography during the transition period and to associate them with metabolic markers of negative energy balance in early postpartum dairy cows.
View Article and Find Full Text PDFEffect of plasma free fatty acids on lung function in male COPD patients.
Sci Rep
January 2025
Department of Internal Medicine, Afzalipour Faculty of Medicine, Afzalipour Hospital Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Inflammation and oxidative stress play a pivotal role in COPD pathogenesis. Free fatty acids (FFA) as signaling molecules through a series of G-proteins coupled receptors, play an important role in regulation of the immune system and oxidative stress. For this reason, we decided to investigate the profile of FFA in the plasma in the COPD patients.
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