摘要
[目的]研究饲粮中不同添加比例的全株玉米青贮饲喂西门塔尔杂交肉牛效果。[方法]选取体重378 kg左右的西门塔尔杂交牛50头,随机分为5组,饲喂相同的精饲料,粗饲料中分别添加20%、40%、60%、80%和100%的全株玉米青贮作为试验Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ组,试验期70 d。[结果]随着全株玉米青贮添加比例增加,试验牛末重逐渐增加;饲粮中全株玉米青贮添加比例对肉牛平均日增重有极显著差异,Ⅴ组平均日增重极显著高于Ⅰ组14.40%;各组间料重比存在显著性差异。试验Ⅴ组增重收入和养殖效益最高,分别为35.75元/(d·头)和9.47元/(d·头),试验Ⅴ组养殖效益分别高出Ⅰ、Ⅱ、Ⅲ、Ⅳ组7.34、5.34、3.42和1.05元/(d·头)。[结论]随着饲粮中全株玉米青贮比例增加,肉牛增重和养殖收益均呈上升趋势,当全株玉米青贮比例为80%~100%时,肉牛增重效果较好,养殖效益较佳。
[Objectives] The purpose of this experiment was to study the effect of whole-plant corn silage with different proportion on beef cattle.[Methods] Selecting 50 simmental crossbred cattle body weight about 378 kg,they were randomly divided into five groups,feeding the same concentrate,20%,40%,60%,80% and 100% whole plant corn silage were added to the roughage respectively,the test period is 70 days.[Results] The results indicated that with the increase of whole corn silage,the final weight increased,the increase of the average daily weight increase was significantly higher than 14.40%in group Ⅰ.Weight gain income was the highest and breeding benefit in experimental group Ⅴ,with 35.75 yuan(d every head) and 9.47 yuan(d every head),and the breeding benefit in test group Ⅴwas 7.34,5.34,3.42 and 1.05 yuan higher than group Ⅰ、Ⅱ、Ⅲ、Ⅳ respectively.[Conclusions] With the increase of whole plant corn silage,the weight gain of beef cattle are increasing.When the proportion of whole plant corn silage is 80%-100%,beef cattle have better weight gain effect and better breeding benefit.
作者
谷守国
董李学
霍路曼
周璇
侯俊杰
GU Shouguo;DONG Lixue;HUO Luman;ZHOU Xuan;HOU Junjie(Quality Monitoring Center of Animal Husbandry and Aquatic Products of Tangshan/Engineering Technology Research Center of Agricultural Product Quality and Safety Inspection of Hebei,Tangshan 063000,China)
出处
《养殖与饲料》
2022年第6期5-8,共4页
Animals Breeding and Feed
基金
河北省二期现代农业产业技术体系草业创新团队建设项目(HBCT2018160403)。
关键词
添加比例
全株玉米青贮
肉牛
生长性能
养殖效益
different proportion
whole-plant corn silage
beef cattle
growth performance
breeding benefit
