... to your's requirments about the contents and formula. vitamins feed(feed additives) Specificaitons: Vitamins: Vitamin A ,Vitamin D3 ,Vitamin E ,Vitamin ... acid, leucine, glycine, alanine, cysteine, methionine, isoleucine, proline, phenylalanine, tyrosine, lysine, histidine, arginine, tryptophan) Package: 20kg CartonStorage: in the Dry, Cool ...