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Some nutritionists and farms balance diets for amino acids (AAs) to increase milk protein yield, optimize protein efficiency and ensure optimal health of cows.
Increasing nitrogen efficiency and income over feed costs (IOFC) represent goals nutritionists and dairymen alike strive for. In April 2015, the cost of metabolizable protein was $0.64 per pound for the Midwest U.S.
For a cow producing 80 pounds of milk at 3.1 percent milk protein, this represents a nutrient cost of $3.59 per day. The question of whether protein supplementation can be reduced or optimized to improve IOFC should routinely be considered.
