The results showed that adding 2%TD-2 herb feed additive group improved the milk yield by nearly 5% (P>0.05) compared with control group.
结果表明：①饲料中添加2％TD-2中药添加剂的试牛较对照组提高产奶量近5％（P>0.05）；
The results indicate that the yield of milk was improved greatly, and the contents of iron, zinc, and selenium were also increased differently by the addition of the trace elements in the feedstuff.
结果表明：奶牛饲料中添加上述微量元素后，产奶量明显提高。且鲜奶中所含的铁、锌、硒都有不同程度的增加。
The rye grass also contains rich crude protein and vitamin. Raising cows with it improved the daily fresh milk yield by 17.3 percent.
黑麦草粗蛋白、维生素含量丰富，用黑麦草饲喂奶牛，奶牛日产鲜奶量可提高17 3%。
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