荔波县牛人工授精及品种改良存在的问题及对策荔波縣牛人工授精及品種改良存在的問題及對策 려파현우인공수정급품충개량존재적문제급대책 The Existing Problems and Countermeasures for Artificial Insemination and Variety Improvement of Cattle in Libo County
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贵州畜牧兽医貴州畜牧獸醫귀주축목수의 GUIZHOU ANIMAL SCIENCE AND VETERINARY MEDICINE 2010年6期43-44,共2页
