Dietary factors influencing protein utilization: a review

Utilization of dietary protein depends not only on the amino acid composition and the digestibility of the protein itself, but also upon the level of protein, feed intake, energy, fibre, and other constituents in the feed. On the other hand, the animal species, sex, age and health status may also play an important role. A deeper understanding of these factors helps to utilize feedstuffs as a protein source more efficiently.