# Amino acids for feed (lysine, methionine, threonine, tryptophan)

Contract manufacturing (CMO/CDMO/toll) — Fermentation-produced lysine, methionine, threonine and tryptophan let feed formulators hit amino-acid targets precisely in lower-protein diets, cutting nitrogen excretion.

Source: https://en.bioecon.ru/market/contract-manufacturing/amino-acids-feed-additives/