揉碎大豆秸秆对西门塔尔母牛繁殖性能及犊牛生长性能的影响  

Effect of crushing soybean straw on reproductive performance of Simmental cows and growth performance of calves

作　　者：邹松岩 王勇胜 孙晓玉[2] 李建国[1] 沈宜钊 高艳霞[1] 李秋凤[1] 曹玉凤[1] ZOU Song-yan;WANG Yong-sheng;SUN Xiao-yu;LI Jian-guo;SHEN Yi-Zhao;GAO Yan-xia;LI Qiu-feng;CAO Yu-feng

机构地区：[1]河北农业大学动物科技学院,河北保定071000 [2]黑龙江省农垦科学院畜牧兽医研究所,黑龙江哈尔滨150038

出　　处：《饲料研究》2022年第10期1-5,共5页Feed Research

基　　金：财政部和农业农村部:国家现代农业产业技术体系资助(项目编号:CARS-37);河北省二期现代农业产业技术体系肉牛创新团队高效养殖岗位建设项目(项目编号:HBCT2018130202)。

摘　　要：试验研究揉碎大豆秸秆对西门塔尔母牛繁殖性能和犊牛生长性能的影响。选取健康、体重相近、妊娠4~6个月的健康西门塔尔母牛30头,随机分为3组,每组10个重复,每个重复1头牛。试验Ⅰ组为玉米秸秆组,试验Ⅱ组为揉碎大豆秸秆50%替代玉米秸秆组,试验Ⅲ组为揉碎大豆秸秆100%替代玉米秸秆组。试验期335 d。试验期内测定犊牛生长性能指标、母牛繁殖性能指标。结果显示:各组初生、2月龄、4月龄犊牛的体重、各阶段平均日增重差异均不显著(P>0.05),但均以试验Ⅱ组最高。试验Ⅱ组犊牛初生体高显著高于试验Ⅲ组(P<0.05);试验Ⅰ组犊牛的初生管围显著高于试验Ⅲ组(P<0.05)。试验Ⅱ组犊牛成活率最高,为90%;试验Ⅱ组母牛产后发情间隔天数最低,为67 d。研究表明,揉碎大豆秸秆50%替代玉米秸秆饲喂妊娠期的西门塔尔牛,在一定程度上可以改善犊牛生长性能及母牛繁殖性能。The study was to investigate the effect of feeding soybean straw on reproductive performance of Simmental cows and the growth performance of calves. 30 healthy Simmental cows with similar body weight from four to six months of gestation were randomly divided into three groups, with ten replicates in each group and one cow in each replicate.Group Ⅰ was corn straw group, group Ⅱ was crushed soybean straw 50% replaced corn straw group, and group Ⅲ was crushed soybean straw 100% replaced corn straw group. The experiment lasted for 335 d. Growth performance indexes of calves and reproductive performance indexes of cows were measured during the trial period. The results showed that there were no significant differences in birth weight, body weight and average daily gain of calves at two and four months of age among all groups(P>0.05), but the highest values were found in group Ⅱ. Body height of calves at newborn in group Ⅱwas significantly higher than that in group Ⅲ(P<0.05). Calf circumference at newborn in group Ⅰ was significantly higher than that in group Ⅲ(P<0.05). The survival rate of calves in group Ⅱ was 90%. The lowest interval of postpartum estrus was 67 d in group Ⅱ. The experiment indicates that 50% of crushed soybean straw instead of corn straw fed Simmental cattle during pregnancy can improve calf production performance and cow reproductive performance to a certain extent.

关 键 词：揉碎大豆秸秆 西门塔尔妊娠母牛 繁殖性能 犊牛 生长性能 

分 类 号：S823[农业科学—畜牧学]