Animal Husbandry and Feed Science ›› 2012, Vol. 33 ›› Issue (8): 89-89.doi: 10.12160/j.issn.1672-5190.2012.08.050
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LUO Yi, ZHAO Xian-zhiI, ZHANG Chang-lian1, CHENG Tian-yin2, YANG You-fu2, WANG Yang-ming1 ( 1 .Academy of Animal Husbandry Sciences of Chongqing, Chongqing 400015, China ; 2.Animal Husbandry Technology Serviee Center of Xiushan Tujia and Miao Autonomous County, Chongqing 409900,China)