... , Se and Co et. 2.satisfy shrimp growth needing mineral elements. 3.premix for poultry Function:This item is produced according ... , Zn, Cu, Fe, I, Se and Co etc. 7 mineral elements, among the Se is very abundant, promote chicken growth, prevent ... .Warranty: 6 monthsTechnique Index:(Unit: mg/kg)MnZnCuFeISeCo6050050000600030500350500200 Poultry mineral elements premix