This experiment is to study on effect of whole corn silage mixed ration feeding beef cattle fattening.Choose 24 crossbreed bred bulls from Angus(AG)×Local cattle、Limousin(LM)×Local cattle、Simmental(SM)×Local cattle with similarly age、weight and body condition.By species,they were divided into four groups,trial period 100 days.The results indicated that:①Average daily gain per cattle: Ⅱ(LM)、 Ⅳ(SM2) Ⅲ(SM1)Ⅰ(AG),it was significantly different between the four groups(P0.05);②The average of BPI per cattle: ⅣⅡⅢⅠ,the change of BPI was not obvious(P0.05),the average of BCS growth rate(%) :ⅣⅢⅡⅠ;the difference between groupⅠand other groups was significant(P≤0.01);③Feed efficiency(feed consumption volume / increase quality): ⅢⅡⅣⅠ;④Average net income per cow cattle、the ratio of the total investment share of output and new investment share of output: trail groupⅢⅡⅣⅠ.The experiment indicated that better fattening to application to whole-plant corn mixed ration feeding techniques in the large-scale beef cattle production.%对全株玉米青贮混合日粮饲喂肉牛育肥效果进行了试验研究。选择年龄、体质量和体况接近的安格斯(AG)、利木赞(LM)、西门塔尔(SM)与当地黄牛的杂交育成公牛共24头,按品种分为4组,试验期100 d。结果表明:①参试牛头均日增体质量排序为:Ⅱ组、Ⅳ组〉Ⅲ组〉Ⅰ组,差异达到显著水平(P〈0.05);②BPI均值排序为:Ⅳ组〉Ⅱ组〉Ⅲ组〉Ⅰ组,但差异不显著(P〉0.05);BCS平均增长率(%)排序为:Ⅳ组〉Ⅲ组〉Ⅱ组〉Ⅰ组,且试验Ⅰ组与其余3组差异极显著(P≤0.01);③饲料报酬(耗料量/增质量)排序:Ⅲ组〉Ⅱ组〉Ⅳ组〉Ⅰ组;④参试牛头均纯收益、总投入占产出比及新增投入占产出比排序均为:Ⅲ组〉Ⅱ组〉Ⅳ组〉Ⅰ组。研究表明,在规模化肉牛生产中,应用推广全株玉米混合日粮饲喂技术,育肥效果更好。
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