日粮中添加藜麦秸秆对奶牛生产性能和血清生化指标的影响  

Effect of dietary quinoa straw on performance and serum biochemical indexes in dairy cows

作　　者：郝怀志[1] 董俊[1] 杨发荣[1] HAO Huaizhi;DONG Jun;YANG Farong(Institute of Animal Pasture and Green Agricultural,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu Province 730070,China)

机构地区：[1]甘肃省农业科学院畜草与绿色农业研究所

出　　处：《中国饲料》2019年第11期61-65,共5页China Feed

基　　金：甘肃省2016年草牧业试验试点和草业技术创新联盟科技支撑项目(GCLM2016009);甘肃省农业科技创新项目(GNCX-2014-33)

摘　　要：为研究日粮中添加藜麦秸秆对奶牛生产性能和血清生化指标的影响,试验根据胎次相同,产犊时间、体重、产奶量相近的原则,选择16头中国荷斯坦奶牛作为试验牛。采用单因子随机试验设计,随机分为4组,每组4头牛,分别饲喂4种不同比例藜麦秸秆的全混合日粮(TMR)。藜麦秸秆的干物质(DM)添加比例分别为0%(Ⅰ组),5%(Ⅱ组),10%(Ⅲ组),15%(Ⅳ组)。预试期10d,正式期60d。结果表明:试验Ⅱ、Ⅲ组的产奶量、4%标准乳产量显著高于试验Ⅰ组(P<0.05),试验Ⅱ、Ⅲ组的产奶量分别比试验Ⅰ组高6.58%和6.87%,试验Ⅱ、Ⅲ组的4%标准乳分别比试验Ⅰ组高5.37%和10.61%;试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组的乳脂率、乳糖率、乳蛋白率和乳总固形物差异均不显著(P>0.05);试验Ⅰ、Ⅱ、Ⅲ组和Ⅳ组的粗蛋白质(CP)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)的表观消化率差异不显著(P>0.05);试验Ⅰ、Ⅱ、Ⅲ、Ⅳ组葡萄糖、甘油三酯、高密度脂蛋白、低密度脂蛋白、尿素氮、总蛋白、白蛋白、球蛋白、谷丙转氨酶、谷草转氨酶和碱性磷酸酶差异均不显著(P>0.05)。综上所述,奶牛日粮中添加藜麦秸秆能提高其产奶量,对血清生化指标无不利影响。The aim of this experiment was to study the effect of dietary quinoa straw on performance and serum biochemical indexes in dairy cows.According to the same birth rate,the principle of similar birth time,similar weight,and similar milk production,16 cows were selected as test cows.Using single-factor randomized trial design,it was randomly divided into 4 groups of 4 cows each,and 4 kinds of total mixed diets(TMR)of quinoa straw in different proportions were feed.The dry matter(DM)addition ratios of quinoa straw were 0%(GroupⅠ),5%(GroupⅡ),10%(GroupⅢ)and 15%(GroupⅣ).The pretrial lasted for 10 d,and the trial lasted for 60 d.The results showed as follows:The milk yield and 4%standard milk of groupⅡ,groupⅢwere higher(P<0.05)than the groupⅠ,the milk production of group II and groupⅢwere 6.58%and 6.87%higher than that of groupⅠ,respectively,the 4%standard milk of groupⅡand groupⅢwere 5.37%and 10.61%higher than that of groupⅠ,respectively.There was no significant difference(P>0.05)between groupsⅠ,Ⅱ,Ⅲand groupⅣin the milk fat percentage,lactose percentage,milk protein percentage and total milk solid.There was no significant difference(P>0.05)between groupsⅠ,Ⅱ,Ⅲ,Ⅳin the the apparent digestibility of crnde protein(CP),acid detergent fiber(ADF),and neutral detergent fiber(NDF).There was no significant difference(P>0.05)between all the test group about the content of glucose,triglyceride,high-density lipoprotein,low-density lipoprotein,blood urea nitrogen,total protein,albumin,globulin,tlutamic-pyruvic transaminase,glutamic-oxalacetic transaminase and alkaline phosphatase.The experiment suggested that the addition of quinoa straw to dairy cows diet could increase milk yield,and there was no adverse effect on serum biochemical indexes of dairy cows.

关 键 词：藜麦秸秆 奶牛 生产性能 血清生化指标 

分 类 号：S816.4[农业科学—饲料科学]