不同比例小叶章日粮其中性洗涤纤维与酸性洗涤纤维降解率的研究  

The Research of ADF and NDF Degradability of Deyeuxia Langsdorffii Kunth When Cows were Fed Different Proportions of Diets

作　　者：曲永利[1] 苗树君[1] 贾永全[1] 马龙 

机构地区：[1]黑龙江八一农垦大学动物科技学院,黑龙江大庆163319 [2]黑龙江宝清县597农场畜牧科,黑龙江宝清156600

出　　处：《家畜生态学报》2005年第2期51-55,共5页Journal of Domestic Animal Ecology

基　　金：国家"十五"奶业重大专项之子课题"寒区奶牛科学饲养技术应用"编号为GZ02B063

摘　　要：　本文采用拉丁方试验设计,利用瘤胃尼龙袋技术,测定适时收获的小叶章牧草占粗饲料不同比例时,其NDF、ADF在奶牛瘤胃中的降解率。结果表明:饲喂不同处理日粮时小叶章牧草的NDF在奶牛瘤胃降解率依次为27.78%、33.14%、30.58%,ADF在奶牛瘤胃降解率依次为27.03%、30.78%、29.59%。说明当小叶章牧草占日粮粗饲料的25%、全株玉米青贮占75%时,其对奶牛的饲用价值较高。Three rumen fistulated Holstein cows were used to study the ADF and NDF degradability of Deyeuxia Langsdorffii Kunth in situ when its hay account for cow coarse fodder at the different proportions in 3×3 Latin square design. The results showed that the NDF effective degradability of Deyeuxia Langsdorffii Kunth when cows fed different diets were 27.7768%?33.1377%?30.5774% respectively. The ADF effective degradability of Deyeuxia Langsdorffii Kunth when cows fed different diets were 27.0348%?30.7845%?29.5858% respectively. The experiment proved that Deyeuxia Langsdorffii Kunth had higher feeding value when fed 25% its hay and 75% corn ensiling as coarse fodder.

关 键 词：小叶章 酸性洗涤纤维 中性洗涤纤维 日粮 比例 瘤胃尼龙袋技术 瘤胃降解率 试验设计 适时收获 不同处理 饲用价值 粗饲料 NDF ADF 拉丁方 牧草 牛瘤胃 奶牛 饲喂 

分 类 号：S812.8[农业科学—草业科学] S828.5[农业科学—畜牧学]