It is used as feed additive for promoting the growth of livestock and poultry, prevention and treatment of livestock and poultry bacterial diarrhea and dense helicoid is caused by blood dysentery. Oral administration of zinc bacitracin is almost no absorption, mostly in 2 days with the feces. So it is not easy to remain in the livestock and poultry products; bacteria to bacitracin produced very little resistance, and other antibiotics nor cross resistance and with penicillin, streptomycin, neomycin, streptomycin, mostly clay bacteria and have a synergistic effect. This product is toxic, not injection. The goods and olaquindox, guitar mold, mold of Virginia, Pinella mildew element existence is incompatibility.