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Milk Protein Yield


Formulating for Better AA Efficiency

How to optimize milk protein yield, improve cost efficiency, and reduce nitrogen excretion? The answer: Balance dairy rations for essential amino acids (EAA) rather than their aggregate, metabolizable protein (MP). Canada’s Dr. Hélène Lapierre and U.S. researchers updated the NASEM 2021 guide to MP and EAA, which now recognizes requirements and “efficiency of utilization” of individual EAA.

Protein for Transition

Protein for Transition In high-producing dairy cows, a top priority is accurately meeting — but not exceeding — energy needs. However, toward the end of gestation, cows also mobilize amino acids (AA) from available protein sources, including skeletal muscle. Purdue University’s Dr. Jackie Boerman suggests AA dietary support for muscle in dry cows and during early lactation may be economical insurance for a strong transition.

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