Alanine is an amino acid that is used to make proteins. It is used to break down tryptophan and vitamin B-6. It is a source of energy for muscles and the central nervous system. It strengthens the immune system and helps the body use sugars.
Beta-alanine enhances performance by increasing exercise capacity and decreasing muscle fatigue. It also has antioxidant, immune-enhancing and anti-aging properties. You can get beta-alanine from foods that contain carnosine or through supplements. The recommended dose is 2–5 grams daily.
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.