Do you have feed additive? Like L-Threonine 98.5%, L-Lysine Hcl 98.5%, L-Lysine sulfate 70%, L-Tryptophan, Choline Chloride 50%/60%/70%,Corn Gluten Meal, MSG byproduct. If you have feed additive,please contact us. Golden Gain Import and Export Co., LTD Mail:Â 001@sdgoldengain.com Skype:Â Â Â Â Â vickymacong Show More