利用优良牧草饲喂奶牛试验效果

摘要

In the case of adding quality forages and mixed silage respectively, at the same time, reducing concentrate in dietary accordingly, this study measures the milk yield, milk fat and milk protein, and trys to find out the reasonable proportion of quality forages. The results show that the milk yield, milk protein in the experimental group of concentrate-to-forage ratio 40:60 is significantly higher than the control group, they are increased by 7.27% and 1.59% re-spectively in the fresh forage group and increased by 20.49% and 2.61% respectively in silage group. Therefore, adding 60% roughage in cows daily dietary is the best.%本研究在奶牛日粮中分别添加优良牧草和混合青贮，在相应减少日粮精料情况下，测定产奶量、乳脂率、乳蛋白含量，探索优良牧草在奶牛日粮中合理比例。试验结果表明，精粗比为40‥60试验组产奶量、乳蛋白明显高于对照组，鲜饲分别提高了7.27%、1.59%，青贮分别提高了20.49%、2.61%。因此，奶牛日粮中添加60%粗饲料效果最好。