全株玉米青贮与湿玉米芯饲喂肉牛效果对比

[目的]试验旨在研究全株玉米青贮与湿玉米芯饲喂肉牛效果对比,[方法]选择体重450 kg左右的西门塔尔杂交牛30头,随机分为2组,保证精饲料不变,分别饲喂全株玉米青贮与湿玉米芯,试验期70 d。[结果]结果表明,(1)全株玉米青贮组的日增重显著高于玉米芯组(P<0.01),比玉米芯组高出20.92%,全株玉米青贮组的料重比较玉米芯组低21.16%;(2)每头牛全株玉米青贮组的养殖效益为15.38元/d,比玉米芯组高出52.37%。[结论]综上所述,全株玉米青贮组的饲喂效果优于湿玉米芯组。

Effect comparison of whole corn silage and wet corn cob feeding on beef cattle

[Objective]The purpose of this experiment was to study the effect of feeding beef cattle with whole plant corn silage and wet corn cob.[Method]Thirty healthy Simmental hybrid bulls weighing about 450 kg were randomly divided into two groups that were fed different diets for 70 d.One group fed whole plant corn silage and the other group fed corn cob.The refined feed does not change.[Result]The results showed as follows:(1)the daily weight gain of the whole plant silage corn group was significantly higher than the corn cob group(P<0.01),which was 20.92%higher than corn cob group.The weight of whole maize silage group was 21.16%lower than that of corn cob group.(2)the breeding benefit of the whole plant corn silage group was 15.38 yuan/d,which is 52.37%higher than the corn cob group.[Conclusion]In summary,the feeding effect of the whole plant corn silage group was better than the wet corn cob group.