不同青贮饲料日粮对奶牛产奶量和乳成分的影响  

The Effects of The Different Silage on Milk Yield and Composition in Dairy Cows

作　　者：王群[1] 唐波[1] 韩兆玉[1] 

机构地区：[1]南京农业大学动物科技学院,南京210095

出　　处：《中国奶牛》2013年第9期52-54,共3页China Dairy Cattle

基　　金："十二五"国家科技计划课题(编号:2012BAD12B10);;江苏省农业三新工程课题(编号:SX2011-189;SXGC[2012]394)~~

摘　　要：根据胎次相同、产奶量、泌乳时间相近的原则选择泌乳中前期奶牛30头,随机分为2组,每组15头,分别饲喂全株玉米青贮和小麦青贮饲料,研究其对奶牛产奶量和乳成分的影响。结果发现,与全株玉米青贮相比,小麦青贮组奶牛产奶量提高0.26kg/d,乳脂率、乳糖、非脂固形物和总固体均有提高,但差异不显著(P>0.05);小麦青贮替代全株玉米青贮可实现每头奶牛每天多盈利0.31元。结果表明,小麦青贮替代全株玉米青贮能够提高奶牛产奶量和改善乳成分。30 cows were selected and randomly divided into control and treatment with 15 cows in each group,according to the principles of similar parity,milk yield and lactation time.Cows were fed corn silage in control.Cows were fed wheat silage in treatment.The effects of the different silage on milk yield and composition in dairy cows were studied.The results found that milk yield improved 0.26kg/d in treatment than that of control.Milk fat,lactose,non-fat solid matter and total solids improved in treatment than that of control,but it was not significant different(P>0.05).The benefit improved 0.31yuan/d in treatment than that of control.The result showed that milk yield and composition were improved if wheat silage substituted corn silage in lactation dairy cows.

关 键 词：青贮饲料 产奶量 乳成分 奶牛 

分 类 号：S823.4[农业科学—畜牧学]