The Effect of Rumen-Protected Conjugated Linoleic Acid on Milk Composition and Milk Energy Output of Holstein Cows and Its Potential Mechanism.

ABSTRACT: Conjugated linoleic acid (CLA) can regulate fatty acid metabolism and increase the content of unsaturated fatty acids in milk during the nutritional regulation process in dairy cows. However, its effects on milk composition and milk energy output in dairy cows remain unclear. We aimed to investigate whether RP-CLA reduces milk energy output during early lactation while lowering milk fat, as well as whether it affects milk protein synthesis and the potential mechanisms. We examined the milk composition of Holstein fresh cows at different stages by administering RP-CLA for 7 days and analyzing related gene expression in the MAC-T cell line. RP-CLA did not significantly alter milk yield, lactose, or blood ketone levels in early lactation. Starting RP-CLA from day 21 postpartum reduced milk fa

SUBMITTER: Wei Z 

PROVIDER: S-EPMC11603253 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature