摘要
研究高粱秸、玉米秸、豆秸和甘薯藤4种秸秆在不同保存方法(露天保存、棚舍保存、青贮和氨化)下主要营养物质的变化情况。并选用2头安装有永久性瘤胃瘘管的去势本地黄牛(450±15kg)来研究不同保存方法对其DM、OM、NDF和ADF瘤胃降解率的影响。结果表明:不同保存方法对CP影响差异极显著(P<0.01);对OM高粱秸差异极显著(P<0.01),甘薯藤差异显著(P<0.05);NDF差异均显著(P<0.05);ADF差异均显著(P<0.05),WSC差异极显著(P<0.01);提高DM、OM、NDF和ADF降解率的方法为烘干,氨化,豆秸除外。
The study determined the change condition of major nutrients in sorghum straw, corn straw, soybean straw and sweet potato vine in different conservation methods（open-air conservation , shed conservation ,silage and ammoniation）. And two steers （450＋15kg） with permanent rumen cannulas were used to determine the effects of conversation methods on the rumen degradabilities of DM, OM, NDF and ADF.The results show： The CP content of straws was higher significantly affected by the conservation methods （P〈 0.01）; The conservation methods higher significantly affected the OM content of sorghum straw （P〈0.01） and significantly affected of sweet potato vine （P〈0.05）; higher significantly the NDF content except sweet potato vine （P〈0.01）, significantly the ADF content of sorghum straw and corn straw （P〈0.05）. higher significantly of soybean straw and sweet potato vine; The WSC content of straws was higher significantly affected by the different conservation methods （P〈0.01）. The oven-drying and ammoniation improved the rumen degradabilities of DM, OM, NDF and ADF of straw except soybean straw.
出处
《中国农学通报》
CSCD
2007年第11期24-28,共5页
Chinese Agricultural Science Bulletin
基金
山西省自然科学基金(961024)
关键词
秸秆
营养价值
保存方法
straw
conservation methods
nutritive value
