Animal Husbandry and Feed Science ›› 2012, Vol. 33 ›› Issue (3): 39-39.doi: 10.12160/j.issn.1672-5190.2012.03.017
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ZHANG Yan-ying, SHI Qiu-mei, GAO Guang-ping, MA Zeng-jun, GE Mu-xiang, FANG Hai (Key Laboratory of Preventive Veterinary Medicine of Hebei Province, Hebei Normal University of Science and Technology, Changli 066600, China)