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Effects of Copper lysine on Serum Reproductive Hormone Level during Estrous Cycle in Simmental Heifers
Wang Cong, Huang Yingxiang, Yue Wenbin, Liu Qiang, Meng Jie
Chinese Agricultural Science Bulletin . 2006, (10): 7 -7 .  DOI: 10.11924/j.issn.1000-6850.061007