畜牧与饲料科学 ›› 2011, Vol. 32 ›› Issue (7): 94-94.doi: 10.12160/j.issn.1672-5190.2011.07.051
郭俊清[1,2] 徐进[1,2] 李建正[1,2]
GUO Jun-qing,XU Jin,LI Jian-zheng(1.Zhengzhou Houyi Pharmaceutical Co. Ltd.,Zhengzhou 451161,China;2.Henan Natural Veterinary Medicine Engineering Technology Research and Development Center,Zhengzhou 451161,China)