甜玉米芯青贮对西门塔尔杂交肉牛生长性能、营养物质表观消化率及经济效益的影响  

Effects of sweet corn cob silage on growth performance,apparent digestibility and economic benefits in Simmental crossberd bulls

作　　者：司丙文[1] 郭江鹏 王加亭[3] 阿拉坦曹布道 宋华军 白利 郝柱 屠焰[1] Si Bingwen;Guo Jiangpeng;Wang Jiating;Alatancaobudao;Song Huajun;Bai Li;Hao Zhu;Tu Yan

机构地区：[1]中国农业科学院饲料研究所,北京100081 [2]北京市畜牧总站,北京100125 [3]全国畜牧总站,北京100125 [4]赤峰市巴林右旗草原监督管理局,内蒙古赤峰025150 [5]德州市陵城区畜牧兽医服务中心,山东德州253500 [6]辽宁省凌源市现代农业发展服务中心,辽宁凌源122500 [7]巴彦淖尔市畜牧工作站,内蒙古巴彦淖尔015000

出　　处：《饲料工业》2020年第17期13-16,共4页Feed Industry

基　　金：农业农村部农牧交错带优质青粗饲料资源开发利用技术集成示范项目[16200157];“十三五”国家重点研发计划“优质肉牛高效安全养殖技术应用与示范”项目[2018YFD0501700]。

摘　　要：试验旨在研究甜玉米芯青贮对西门塔尔杂交肉牛生长性能、营养物质表观消化率及经济效益的影响,选择体重250 kg左右健康的西门塔尔杂交肉牛22头随机分为2组,其中试验A组粗饲料为全株玉米青贮+玉米秸秆,试验B组粗饲料为甜玉米芯青贮+玉米秸秆,试验期60 d。结果表明:B组平均日增重显著高于A组(P<0.05),料重比显著低于A组(P<0.05);B组中性洗涤纤维表观消化率显著高于A组(P<0.05);B组的头均日收益,比A组高7.96元。综上所述,饲喂甜玉米芯青贮的育肥效果和经济效益比饲喂全株玉米青贮好。The aim of this study was to investigate the effect of sweet corn cob silage on growth perfor-mance,apparent digestibility and economic benefits in Simmental crossberd bulls.22 healthy Simmen-tal crossberd bulls weighting approximately 250 kg were allocated into 2 groups with 12 bulls pergroup.The roughage of Group A was(whole plant corn silage+corn stalk);Group B was(sweet corncob silage+corn stalk).The trial lasted 60 days.The results showed that the average daily gain ofgroup B was significantly higher than group A(P<0.05);The feed/gain of group B was significantly low-er than group A(P<0.05);The apparent digestibility of neutral detergent fiber in group B was signifi-cantly higher than group A(P<0.05);The average daily benefit of group B was 7.96 yuan higher thanthat of group A.In conclusion,in terms of fattening effects and economic benefits,bulls diets withsweet corn cob silage outperformed the whole plant corn silage.

关 键 词：甜玉米芯青贮 肉牛 生长性能 表观消化率 经济效益 

分 类 号：S816.32[农业科学—饲料科学]