Animal Husbandry and Feed Science ›› 2013, Vol. 34 ›› Issue (3): 20-20.doi: 10.12160/j.issn.1672-5190.2013.03.009
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WANG Li-fang ,LI Hong-zhe ,BAO Juan-juan ,LI Zhan-yun (1.Resource Environment and Detection Technology Institute of Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;2.Veterinary Medicine Supervise Institute of Chifeng City in Inner Mongolia,Chifeng 024000,China;3. Miyun Agriculture Office of Beijing,Beijing 101500,China)