Quinocetone is a new antimicrobial growth promotant of quinoxalines, can effectively improve the growth and feed efficiency of food animals with more safety than is provided by olaquindox and carbadox. Characters: 1. Promote growth of animals,improve feed efficiency. 2. Obviously inhibit the activity of Escherichia coli, Staphylococcus aureus, dysentery bacteria. 3. nonpoisonous, non-remaining, non-resistance etc. 4.Improve muscle rate. Standard: enterprise export standard Yellow crystalline powder Assay:98%Min Packing:25kg/drum