milkproductivity相关论文
Effects of Dietary Supplementation of Chromium-Yeast on the Performance and Blood Biochemical Parame
According to parity, calving day, daily milk yield, forty-four healthy dairy cows with average milk production of 27.7 k......
在半哺乳情况下,对3头1/2野血初产牦母牛进行了185天泌乳性能测定。结果;1/2野血初产牦母牛产奶227.53kg,乳脂率6.60%,比当地实初产家牦母牛奶量增加23.61kg,乳脂率提高......