Animal Husbandry and Feed Science ›› 2009, Vol. 30 ›› Issue (5): 1-1.doi: 10.12160/j.issn.1672-5190.2009.05.001
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XU Gui-yu, LU Fang ( 1.Department of Chemistry, Qinghai University for Nationalities, Xining 810007, China; 2.Department of chemistry, Qinghai Normal University, Xining 810008, China)