不同品种全株玉米青贮对泌乳期奶牛生产性能、血清生化指标和瘤胃发酵参数的影响  

Effects of different varieties of whole corn silage on production performance,serum biochemical indexes, and rumen fermentation parameters of dairy cows during lactation

作　　者：李祥浩 郁万瑞 齐梦雅 季少雄 刘书瑞 都文[2] 蒋涛[1,3] LI Xiang-hao;YU Wan-rui;QI Meng-ya;JI Shao-xiong;LIU Shu-rui;DU Wen;JIANG Tao

机构地区：[1]塔里木大学动物科学学院,新疆阿拉尔843300 [2]中国农业大学动物科学技术学院动物营养学国家重点实验室,北京100193 [3]塔里木大学新疆天山金昱牧业有限公司畜牧专家工作站,新疆图木舒克843900

出　　处：《饲料研究》2024年第10期7-11,共5页Feed Research

基　　金：新疆维吾尔自治区现代农业奶产业技术体系-标准化养殖岗(项目编号:XJARS-11-6);兵团农业关键核心技术攻关项目“华西牛乳肉兼用(军垦型)新品系培育(项目编号:NYHXGG、2023AA205)”;塔里木大学校长基金“甘草茎叶在44团肉牛生产中高效利用及示范(项目编号:TDZXZX202303)”。

摘　　要：试验旨在研究不同品种全株玉米青贮对奶牛生产性能、血清生化指标、瘤胃发酵参数的影响。试验选取30头体重(650.00±36.11) kg的奶牛,随机分为两组,每组15个重复,每个重复1头奶牛。对照组饲喂和育187青贮,试验组饲喂新品种全株玉米青贮。预试期15 d,正式试验期60 d。结果表明,两个品种全株玉米青贮营养品质差异不显著(P>0.05)。两组奶牛干物质采食量、乳成分差异不显著(P>0.05)。试验组产奶量、3.5%乳脂矫正乳和饲料效率显著高于对照组(P<0.05)。试验组血清β-羟丁酸含量显著低于对照组(P<0.05)。两组奶牛瘤胃发酵参数差异不显著(P>0.05)。研究表明,新品种全株玉米青贮的饲喂效果优于和育187,有助于提高奶牛的生产性能,且对奶牛的健康和瘤胃发酵无不良影响。The purpose of this experiment was to study the effects of different varieties of whole plant corn silage on the production performance,serum biochemical indexes,and rumen fermentation parameters of dairy cows.In this experiment,30 cows with a body weight of(650.00±36.11)kg were selected and randomly divided into two groups,with 15 replicates per group and one cow per replicate.The control group was fed with Heyu 187 silage,and the experimental group was fed a new variety of whole plant corn silage,respectively.The pre-test period was 15 days and the test period was 60 days.The results showed that there was no significant difference in nutritional quality of whole corn silage between the two varieties(P>0.05).There were no significant differences in dry matter intake and milk composition between the two groups(P>0.05).Milk yield,3.5%milk fat correction milk,and feed efficiency of experimental group were significantly higher than those of control group(P<0.05).The serumβ-hydroxybutyric acid content in experimental group was significantly lower than that in control group(P<0.05).There was no significant difference in rumen fermentation parameters between the two groups(P>0.05).The study indicates that the feeding effect of the new whole corn silage is better than that of Heyu 187,which is helpful to improve the production performance of dairy cows,and has no adverse effects on the health and rumen fermentation of dairy cows.

关 键 词：全株玉米青贮 生产性能 血清生化指标 瘤胃发酵参数 奶牛 

分 类 号：S823[农业科学—畜牧学]