畜牧与饲料科学 ›› 2009, Vol. 30 ›› Issue (5): 59-59.doi: 10.12160/j.issn.1672-5190.2009.05.028
耿建暖[1] 于建军[2] 苗利军[1]
GENG Jian-nuan,YU Jian-jun,MIAO Li-jun ( 1.Environment Management College of China, Qinhuangdao 066004, China;2.Hebei Normal University of Science and Technology, Qinhuangdao 066004,China)