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李宗方;叶东东;黄锡霞;热西提·阿不都热合曼;孙红晨;古丽夏提;刘志强

Analysis of Factors Influencing Dystocia Degrees of Holstein

LI Zong-fang;YE Dong-dong;HUANG Xi-xia;Rexiti·Abudureheman;SUN Hong-chen;Gulixiati;LIU Zhi-qiang

. 2011, (1): 160 -165 .