非遗传因素对中国荷斯坦牛DHI测定指标的影响
张梦华,王爱芳,黄锡霞,李红燕,谭世新,田晓阳
非遗传因素对中国荷斯坦牛DHI测定指标的影响
Impact of Nongenetic Factors on DHI Determining Index of Chinese Holstein Cows
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