添加尿素对青贮玉米秸秆品质的影响

Influence of Adding Urea on the Quality of Silage Corn Straw

为了探讨添加尿素对青贮玉米饲料品质的影响,试验用不同剂量的尿素作为添加剂对原料进行青贮调制,并对开封后的青贮饲料进行了感官评定和实验室评定。结果表明:添加尿素的青贮玉米秸秆,其感官评定等于或优于对照组;实验室评定中青贮饲料的各组间的pH值差异不显著;各组间粗纤维的含量无显著变化;各组间的粗蛋白含量差异显著,特别是使用5g/kg的尿素作用显著优于其它各组。

In order to exploit the influence of urea upon the feed quality of silage corn, different dosages of urea were used as additive to silage moderate the raw material. Sense assessment and laboratory evaluation were carried on the feed after silage. The results showed： the sense assessment of corn straws which added urea was equal to or better than the controlled group. The variance of pH value was not significant among each group in laboratory evaluation. The variance of the content of the crude fiber was not remarkable among each group. The variance of the content of crude protein was significant,particularly, the group which added 5g/kg urea was better than other groups.