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Amino acids in poultry nutrition

Adequate provision of dietary amino acids is required to maintain normal immunocompetence and protection of the host from some diseases in all species (Beski et al. 2015). Therefore, the development of immune function in poultry will be promoted if they receive sufficient amino acids in their diets. The essential amino acids for poultry are arginine, glycine, histidine, leucine, isoleucine, lysine, methionine, cystine, phenylalanine, threonine, tryptophan, and valine. Out of these, the ones critical in practical diets are arginine, lysine, methionine, cystine and tryptophan.
The word protein is derived from the Greek proteios, meaning primary or foremost. This is fitting in that proteins, being the molecular instruments through which genetic information is expressed (one gene – one enzyme), are central to the life process. There is a huge diversity of proteins. The key to the structure of different proteins is the group of relatively simple building block molecules, the amino acids. It is indeed remarkable that the cell can join what is a relatively small...
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