This factsheet discusses general principles in poultry nutrition for all species. It also discusses where these nutrients can be obtained. Nutrients Crude Protein Dietary protein is important for animal growth, development and maintenance.
Crude protein is a measurement based on the nitrogen content of a feed ingredient.
However, not all protein is the same. Therefore the quality of protein also varies. There are essential and non-essential amino acids. Essential amino acids must be provided in the diets, while non-essential amino acids can be produced by the animal itself if necessary. The dietary balance of amino acids is also very important.