添加剂对苜蓿草渣青贮饲料品质的影响  

Effects of Different Additives on the Silage Quality of Alfalfa Fibrous Residues

作　　者：薛艳林[1] 白春生[1] 玉柱[1] 孙杰 单战[1] 孙娟娟[1] 

机构地区：[1]中国农业大学动物科技学院,北京100094 [2]内蒙古自治区农牧业科学院草原研究所,呼和浩特010030

出　　处：《草地学报》2007年第4期339-343,共5页Acta Agrestia Sinica

基　　金：引进国际先进农业科学技术滚动项目"优质草产品生产加工技术"(2006-G38)

摘　　要：为了研究不同添加剂对苜蓿草渣青贮饲料品质的影响,分别设置对照组、蔗糖(2%、3%、3.5%)、玉米粉(5%、7.5%、10%)、甲酸(0.2%、0.3%、0.4%)、乳酸菌(2.5g/t)、乳酸菌+蔗糖(2.5 g/t+2%、2.5 g/t+3%、2.5g/t+3.5%)、乳酸菌+玉米粉(2.5 g/t+5%、2.5 g/t+7.5%、2.5 g/t+10%)17个处理组,调制草渣青贮饲料。结果表明:草渣直接青贮饲料发酵品质较差;蔗糖、玉米粉和甲酸可以改善青贮饲料的发酵品质;单独添加乳酸菌不能提高青贮饲料品质;乳酸菌分别与蔗糖和玉米粉混合使用,与二者单独添加相比较,其青贮饲料的发酵品质和营养成分同样也未得到改善。Alfalfa fibrous residues （AFR） were ensiled with different additives, in order to study the effects of different additives on the silage quality of alfalfa fibrous residues. There were 17 treatments including control, sucrose （2%, 3%, 3.5%）, corn flour （5%, 7.5%, 10%）, formic acid （0.2%, 0.3%, 0.4%）, lactic acid bacteria（2.5 g/t）, lactic acid bacteria ＋ sucrose （2.5 g/t＋2%, 2.5 g/t＋3%, 2.5 g/t＋3. 5%） and lactic acid bacteria ＋corn flour （2.5 g/t＋5%, 2.5 g/t＋7.5%, 2.5 g/t＋10%）. The results show that the fermentation quality of control was poor; sucrose, corn flour and formic acid improved the fermentation quality; lactic acid bacteria did not improve the silage quality of the AFR silage; lactic acid bacteria combined with sucrose or corn flour didn＇t improve the quality of AFR silage compared with the addition alone of sucrose or corn flour, respectively.

关 键 词：苜蓿 草渣 青贮 添加剂 发酵品质 

分 类 号：S812[农业科学—草业科学]