中国畜牧杂志2017，Vol.53Issue(9)：75-79,91,6.DOI:10.19556/j.0258-7033.2017-09-075
精料中桑叶粉添加水平对育肥湖羊瘤胃发酵及纤维降解菌的影响
Effect of Dietary Mulberry Leaf Powder Addition on Rumen Fermentation and Cellulytic Bacteria in Fattening Hu Sheep
摘要
Abstract
This experiment aimed to explore the effects of different levels of mulberry leaf powder in dietary concentrate on rumen fermentation and cellulytic bacteria in fatting Hu Sheep.Forty health male Hu Sheep (16.5±0.6 kg) aged three month,were randomly divided into 5 groups,with 8 per group.The whole-plant silage corn were used as coarse fodder,the dietary concentrate respectively included 0％ (control group),15％ (T15),30％ (T30),45％ (T45),and 60％ (T60) of mulberry leaf powder.The randomized block design was introduced for the feeding experiment comprising 2-week adaption and 8-week experimental period.Compared with thecontrol group,using moderate mulberry leaf powder to the concentrate could improve the concentration of the total VFA,and the concentration of acetic acid and the ratio of acetic acid to propionic acid in groups T 15 and T30 were higher than these incontrol group (P＜0.05),the concentrations of acetic acid,butyrate,isobutyric acid,isovaleric acid in groups T15,and T30 were higher than these in groups T60 (P＜0.05).Moreover,compared withcontrol group,except for Ruminococcus flavefaciens and group T30's Fibrobacter succinogenes,the relative amount of cellulytic bacteria were significantly increased after adding mulberry leaf powder into concentrate,and the relative amount ofButyrivibrio fibrisolvens and Ruminobacter amylophilus in group T45 were higher than those in other groups (P＜0.05).Adding moderate mulberry leaf powder to concentrate could promote the Hu sheep's rumen fermentation of fiber material,especially when the mulberry leaf powder content in concentrate was 45％.关键词
桑叶粉/育肥湖羊/瘤胃发酵/纤维降解菌Key words
Mulberry leaf powder/Hu Sheep/Rumen fermentation/Cellulytic bacteria分类
农业科技引用本文复制引用
欧阳佳良,吴天弋,王梦芝,侯启瑞..精料中桑叶粉添加水平对育肥湖羊瘤胃发酵及纤维降解菌的影响[J].中国畜牧杂志,2017,53(9):75-79,91,6.基金项目
江苏省2016年苏北专项(富民强县:BN2016096)项目 （富民强县:BN2016096）
扬州大学大学生创新训练项目(x2015694、x2015693) （x2015694、x2015693）
现代农业产业技术体系建设专项(CARS-22) （CARS-22）
