摘要
研究了添加不同比例的糖蜜(0%、5%、10%)对麸皮调节水分的苜蓿青贮品质和发酵进程的影响。结果表明:添加糖蜜明显提高了青贮饲料的品质,缩短了青贮时间。青贮饲料的pH值、氨态氮、氨态氮和总氮的比值均为试验Ⅰ组(0%)>试验Ⅱ组(5%)>试验Ⅲ组(10%);重量损失变化有波动,但7d后试验Ⅲ组始终最低;随着时间的延长,3个组的pH值、可溶性糖分均呈下降趋势,氨态氮与总氮的比值、重量损失均呈上升趋势,粗蛋白(CP)则是先降后升的变化规律;综合感官变化,试验Ⅲ组变化最快,青贮发酵时间最短,试验Ⅰ组青贮发酵时间最长,青贮品质较差。
The objective of this study was to investigate the effects with adding different proportion molasses （0%, 5 %, 10 %） on the quality and fermentation progress of alfalfa silage. Results from the experiments showed that the silage quality which was added to molasses was observably improved, and the silage time was also shortened much. The pH value,ammonia-N and the ratio of ammonia-N and total N were all group Ⅰ （0G）〉group Ⅱ （5%）〉group Ⅲ （10%）. The weight loss varied irregularly, but after 7 days,the group Ⅲ was always the lowest. With the time prolonging,pH value and soluble sugar of the three groups were all declined,at the same time, the ratio of ammonia-N/total N,weight lose were ascending,but the crude protein was dropping first and then rising. Considering the sense evaluation, the group Ⅲ during the silage progress changed fast,the silage time was the shortest and the quality was the best,while the group Ⅰ was the worst
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2008年第5期625-628,共4页
Journal of Huazhong Agricultural University
基金
荷兰王国国际合作项目(2002-02-02)
国家农业科技跨越计划项目(2003-22)资助
关键词
糖蜜
苜蓿
青贮品质
发酵进程
molasses
alfalfa
silage quality
fermentation progress
