... Mesh 70% minUsage: As amino acid for forge,threonine is widely added in the forage for newborn pig,covering pig,poultry,shrimp ... low-protein forage; --Cut down the cost of raw materials for forage; --Decrease the nitrogen content in the excrement and urine ... ammonia concentration is kept low in animal shed. Feed grade L-Threonine,l-lysine,amino acid