How essential amino acids positively affect milk fat synthesis

Researchers from Unesp, Jaboticabal, Brazil, sought to evaluate the effects of essential amino acids on de novo milk fat synthesis in bovine mammary epithelial cells. They noted that increased milk fat yield has been observed when dairy cows are supplemented with essential amino acids. Milk fat is one of the most important components considered in establishing milk price.

The researchers exposed the mammary cells to treatments in which a single essential amino acid was omitted at a time, along with positive (containing all essential amino acids) and negative (containing no essential amino acids) controls. Omission of methionine, leucine, isoleucine, histidine, and lysine influenced milk fat synthesis at the primary mammary epithelial cell level.

In order to formulate diets that can increase milk fat production in dairy cattle, the researchers concluded that it is important to understand the relationships among essential amino acid nutrition and mammary gland milk fat synthesis.

Based on 2022 American Dairy Science Association (ADSA) abstract: 

2376W Linking amino acids to milk fat synthesis.

Features Dr. Izabelle Teixeira, Professor at the University of Idaho. Yumi Taguti, undergraduate student at Unesp, Jaboticabal, Brazil. Dr. Brian Sloan, Global Director of Ruminant Amino Acids and Protected Nutrient Business, Adisseo. Dr. Daniel Luchini, Head of Ruminant R&I, Adisseo. Dr. Danielle Coleman, Ruminant R&I Science Manager, Adisseo.

To view abstracts, go to: https://www.adisseo.com/en/products/smartline/smart-science-series-ruminant-videos-and-podcasts/