菠萝渣青贮对奶牛生产性能的影响

Influence of the Pineapple Residue Silage on Production Performance in Dairy Cows

按产奶量、胎次、泌乳天数相近的原则选取110头泌乳奶牛,采用配对分组设计分为试验组与对照组。对照组饲喂基础日粮,试验组在日粮中添加2kg的菠萝渣替代等量玉米秸秆青贮。试验结果表明,试验组平均奶产量较对照组高出0.6kg/(头·d);牛奶乳脂率、乳蛋白率没有明显差异。

In this experiment, a total of 110 cows with the similar milk production, lactation and days in milk were randomly divided into trial group and control group. Experimental group cows were added 2 kg/day of pineapple slag in the diet to replace the diet of corn stover silage, control group cows were fed with basic diet. The results showed that the average milk yield for experimental group was increased by 0.6 kg/day. There was no significant difference in milk fat percentage and milk protein percentage.