High energy, which supports increased milk output even in dry periods. Vitamin A, for the protection of the cow’s epithelial integrity and against diseases. High-quality protein, (by-pass protein at 48 %) for enhanced milk production. The amino acid profile closely resembles that of milk and includes methionine and lysine which are essential in improving milk and milk protein production. Supplemental by-pass protein will help increase the milk persistency between lactation peak and late pregnancy.