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Ruminal Protection And Intestinal Availability Of Rumen-Protected Methionine And Lysine In Lactating Dairy Cows, Sara Menchu
Ruminal Protection And Intestinal Availability Of Rumen-Protected Methionine And Lysine In Lactating Dairy Cows, Sara Menchu
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Rumen protected Methionine (MET) and Lysine (LYS) are critical for milk protein synthesis in dairy cows. N-acetyl-L-methionine (NALM) is a MET derivative that consists of L-Met protected with an acetyl group that is attached to the α-amino group.N-acetyl-L-lysine (NALL) is a LYS derivative that is similarly protected. The objectives of these studies were to quantify the gastrointestinal availability of NALM and NALL. Three experiments were run as 3 × 3 Latin square using 3 second lactation Holstein cows that have been fitted with cannulas in the rumen and duodenum. The cows …