Supply of a histidine-rich bypass protein source improves productive performance and N efficiency independently of metabolizable Met and Lys.
The milk protein equation of the Nutrient Requirements of Dairy Cattle 8th Revised Edition includes additive effects of the metabolizable (m-) supply of Met, Lys, Leu, Ile, and His. However, additive effects of those AA in dietary studies have not been reported. This study aimed to evaluate the relationship between die...