Amino acids and formulation of dairy cow diets

Overfeeding crude protein results in the excess excreted largely as urinary nitrogen. Dairy farms are stepping up for more efficient use of resources and to reduce nitrogen excretion. Decreasing crude protein in the ration results in a reduction of nitrogen excretion, however, doing so without any further diet manipulation may depress yields of milk and milk protein. Diet manipulation is a critical mitigation strategy that can help both reduce nitrogen excretion and production. Supplementatio