L-Tryptophan is one of the essential amino acids for animal growth and is usually the second or third limiting amino acid in grain feeds. It can promote animal feeding, reduce stress response, improve animal sleep, but also can increase the antibody of young, improve milk production.

It is crystal or crystalline powder from white to yellowish white.

It’s used to improve animal food ingestion, weaken stress reaction, improve animal sleeping, increase antibody of fetus and young animal and improve milk secretion of milk yielding animals; it’s also can be used to reduce high quality protein dosage in daily ration, reduce feed cost, protein feed consumption of daily ration and save formula space. 

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