全株玉米青贮饲料饲喂肉牛增重效果试验

Body Weight Gain Effect by using Whole Corn Silage Feeding Beef Cattle

[目的]为探讨全株玉米青贮饲料饲喂肉牛的效果。[方法]试验选择18月龄体重相近的西门达尔杂种黄牛20头,随机分成全株玉米青贮组和去除果穗的玉米秸秆青贮组进行对比分析,每组10头。[结果]玉米全株青贮组头均日增重为1 350g,比去除果穗的玉米秸秆青贮组的1 030g提高320g,差异显著(P<0.05)。试验期玉米全株青贮组头均纯收益比去除果穗的玉米秸秆青贮组提高175.2元,差异显著(P<0.05)。[结论]玉米秸秆经过青贮处理后,其营养价值和适口性好,尤其是全株青贮玉米饲喂肉牛明显好于普通青贮饲料的饲喂效果,可明显提高肉牛增重速度和经济效益,采食量也有所提高,饲料报酬高,对于规模较大的肉牛养殖场,可在今后可大力推广应用。

[Objective]To discuss the feeding effect on beef cattle by whole corn silage. [Method]20 Simmental hybrid cattle in 18-month old with similar body weight were selected and randomly divided into whole corn silage group and corn silage without corn ear group. The feeding effects of the two groups was compared and analyzed. [Result]The average daily gain was 1350 g for the whole corn silage group, which increased 320 g compared with the corn silage without corn ear group. The difference was significant （P〈0. 05） During the experiment period, the net income in whole corn silage group increased 175.2 yuan compared with corn silage without corn ear group. And the difference was significant（P〈0.05）. [Conclusion]The corn straw had good nutrition value and palatability The feeding effect by whole corn silage was better by silage processing, especially silage with whole corn. than general silage, which could improve weight gain rate and economic benefit. The feed intake was also increased and the feed reward was high. As to the lar ger scale beef cattle farm,whole corn silage could be vigorously popularized and applied in the future.