三种不同方法处理的玉米青贮饲喂肉牛效果对比

摘要：本试验旨在研究不同方法处理的玉米青贮饲喂肉牛效果对比，选择体重340kg左右的西门塔尔杂交牛30头，随机分为3组，保证精饲料不变，粗饲料分别饲喂3种不同方法处理的玉米青贮，其中试验Ⅰ组为全株玉米青贮、试验Ⅱ组添加剂全株玉米青贮、试验Ⅲ组玉米秸秆黄贮，试验期70d。结果表明：1）试验Ⅱ组的平均日增重极显著高于试验Ⅰ组、试验Ⅲ组（P＜0.01），分别比Ⅰ组、Ⅲ组高出17.57%、65.71%；Ⅲ组干物质采食量显著高于Ⅰ组、Ⅱ组（P＜0.05）；Ⅰ组和Ⅱ组料重比极显著低于Ⅲ组（P＜0.01）。试验Ⅱ组养殖效益最高为14.14元?天-1?头-1，比试验Ⅰ组高5.05元，比试验Ⅲ组高15.74元。综上，添加剂全株玉米青贮饲喂肉牛效果和养殖效益最佳，全株玉米青贮、玉米秸秆黄贮次之。

Effect comparison of whole corn silage with different treatment methods feeding on beef cattle

Abstract: The purpose of this experiment was to compare the effects of corn silage treated by different methods feeding on beef cattle. 30 Simmental hybrid cattle weighing about 340kg were randomly divided into three groups to ensure that the concentrate was unchanged, and the coarse feed was fed with corn silage treated by three different methods, including whole plant corn silage in group I, whole plant corn silage with additives in group II Experiment group III corn straw yellow storage, the test period was 70 days. The results showed that: 1) The average daily gain of group II was significantly higher than that of group I and group III (P < 0.01), 17.57% and 65.71% higher than that of group I and group III respectively; The dry matter intake of group III was significantly higher than that of group I and group II (P < 0.05); The feed weight ratio of group I and group II was significantly lower than that of group III (P < 0.01). The highest breeding benefit of group II was 14.14 yuan?day-1 ? head-1, 5.05 yuan higher than group I and 15.74 yuan higher than group III. In conclusion, the effect and breeding benefit of whole plant corn silage fed beef cattle were the best, followed by whole plant corn silage and yellow corn straw silage.