milk yield in lactation 全泌乳期产奶量
The sweet flavor, grass flavor, green flavor have amortizing effect during back lactation on the falling of milk yield, but it had not significant difference(P>0.05).
甜味剂组、草香剂组和绿色剂组对试验奶牛的产奶量的降低相对对照组有一定的缓冲作用，但差异不显著（P>0.05）。
Lactation curves and mathematical models of dairy cattle are one of effective methods accurately to describe rules of milk yield against time.
奶牛泌乳过程中的泌乳量是随着时间而呈现规律性变化的，泌乳曲线及其数学模型是描述这一变化规律及趋势的有效方法之一。
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