增乳素对奶牛产奶性能影响的试验研究

采用分期交叉对照设计方案,进行了为期 80 d的“晋畜乐”(增乳素),饲喂泌乳牛的试验研究。结果表明,泌乳牛饲喂食晋畜乐的饲料(1)可提高产奶量,试验组比对照组的头日均产奶量多0.8～0.9 kg。(2)可提高牛奶质量,试验组的乳脂率比对照组上升0.2个百分点,试验组乳干物质比对照组提高0.1％～0.2％。(3)可提高饲料利用率。

Experiment study of Increase Milk Product Affecting Cow' s Milk Performance

Lactating cows were fed on "Jin chule" (Increase milk product) for 80 days by adopting controlled cross by stages design program. The result showed: firstly, milk yield increased due to every cow in treatment group being 0.8 - 0.9 kg daily milk yield mure than the one in control group, secondly, milk quanlity inproved according to milkfat percentage and milk solid of treatment group ruse 0.2% and 0.1 - 0.2% respectively with contract to control group, Thirdly, feed utilization efficiency raised.