L-arginine ((S)-2-amino-5-guanidinopentanoic acid) (3c365)

What it is. L-arginine is an amino acid produced by fermentation using Corynebacterium glutamicum (strain CGMCC 20516). The additive is a solid, with a content ≥ 98.5% L-arginine on a dry matter basis and ≤ 1% water.

What it is for. This functional amino acid is used in animal nutrition across all species, to balance essential amino acid intake in diets. It can be incorporated into complete feed or administered via drinking water. Its use fits into formulation strategies aimed at precisely adjusting the amino acid profile according to physiological stage or production target.

Points to watch. Any L-arginine supplementation, particularly via drinking water, must take into account all essential and conditionally essential amino acids to avoid imbalances. Storage conditions, stability under heat treatment and stability in water must be specified in the instructions for use of the additive and premixture. Personal protective equipment (respiratory, skin, eye) may be required during handling if risks cannot otherwise be reduced to an acceptable level.