Choline chloride is widely used as a kind of feed additive and it is the best form of choline salts, the main function of choline chloride is to supply methyl group in cellular formation, it is in fact an essential component for ensuring the proper functioning of the nervous system, many animals, such as poultry, livestock have heavy requirements to choline chloride supplement, its shortage will result in a retarded growing, uncoordinated movements, and poor fertility etc.