Animal Husbandry and Feed Science ›› 2009, Vol. 30 ›› Issue (4): 3-3.doi: 10.12160/j.issn.1672-5190.2009.04.002
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ZENG Lai-tao, LI Lu-bin, GUO Xiao-jun, LI Shu-na,ZHU Bao-cheng( (1.College of Life Science, Hebei University, Baoding 071002, China; 2. Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration, Beijing 100091, China; 3. College of Life Science, Agricuhure University of Hebei, Baoding 071001, China)