BALANCING FOR AMINO ACIDS BEYOND LYSINE AND METHIONINE

摘要

We have all been frustrated with occasional low production on rations that seem to be well balanced, including Met and Lys. His and Leu supplies may not be adequate in some rations. We can use these ratios in the field to fine tune rations for optimumresponse in milk yield and protein yield. Good practices of ration formulation like maximizing bacterial growth by feeding good quality forages, using high RUP ingredients with good EAA profiles and high intestinal digestibility, and providing sufficient rumen available nitrogen may solve unexplained low production.