燕麦秸—稻草混合青贮的研究

为解决南方冬—春季牧草缺乏及能够合理利用南方稻草资源,对燕麦秸—稻草混合青贮样品设置了4个处理.结果表明,1号处理pH、氨态氮占总氮含量显著高于其他3组青贮饲料（P＜0.05）,4号处理的pH和氨态氮占总氮含量显著低于其他3组青贮饲料（P＜0.05）,4号处理粗蛋白含量最高,且4个处理间粗蛋白含量存显著性差异（P＜0.05）;4个处理组均未检测出丁酸.综合试验结果,单贮燕麦秸可以得到优良的青贮饲料,且鲜燕麦添加比例为70％的燕麦—稻草混贮效果与其相近.

Study on Mixed Silage of Rice Straw and Oat Straw

The fermentation quality and chemical components of the ensiled oat straw and rice straw were investigated in this study.The forage was either ensiled solely or ensiled by mixing the rice straw and oat straw at some rates to determine the optimal mixture between them.The results of this study indicated that the pH value,content of ammonia nitrogen of No.1 was significantly higher （P〈0.05） than that of other three groups.The pH value and content of ammonia nitrogen of No.4 was significantly lower than that of other three groups （P〈0.05）.There was significant difference between four groups （P〈0.05）,the crude protein content of No.4 was the highest.There was no butyric acid in four groups.This study suggested that the directly ensiling oat straw was a better feed,and the effectiveness of the mixed silage which had 70% fresh oat straw was better.