甘南地区不同组合裹包青贮饲料饲喂牦牛对比试验

Comparative Experiment of Feeding Yak with Different Combinations of Silage in Gannan Area

中文关键词: 加工  青贮饲料  饲喂  牦牛  对比试验

英文关键词: process  silage roughage  feeding  yak  contrast test

中文摘要:

      [目的]通过试验筛选适合甘南地区冷季牦牛舍饲育肥适口性好，育肥效果优的低水分裹包青贮粗饲料。[方法]通过将在合作市卡加道乡岗吉草产业专业合作社种植的饲用青引2号燕麦，甘农2号小黑麦，刈割后用秸秆发酵剂调制成裹包青贮饲料，经过牦牛舍饲饲喂试验观测低水分青贮饲料饲喂效果。[结果]经过60d的舍饲育肥，试验Ⅰ组平均每头增重43.1kg，试验Ⅱ组平均每头增重36.1kg，试验Ⅲ组平均每头增重30.2kg，Ⅰ组比Ⅱ组每头平均多增重7.0kg，Ⅰ组比Ⅲ组每头平均多增重10.9kg，Ⅱ组比Ⅲ组每头平均多增重3.9kg。[结论]试验结果表明，从营养价值、食口性来看，青贮燕麦秸秆组>青贮燕麦秸秆50%+青贮小黑麦秸秆50%组>青贮小黑麦秸秆组；在饲料成本上涨不计人工成本的情况下，三组经济效益青贮燕麦秸秆最大。因此，低水分青贮燕麦秸秆应作为甘南冷季牦牛育肥的首选加工调制粗饲料。

英文摘要:

      [Objective] To screen low moisture wrapping silage roughage suitable for cold season yak in Gannan area with good palatability and good fattening effect.[Methods]The forage qingyin no. 2 oat and Gannong No. 2 triale planted in Gangji Grass Industry specialized cooperatives，Kajiadao Town， Hezuo City were made into wrapped silage with straw starter after cutting,，and the feeding effect of low moisture silage was observed by yak feeding experiment.[Results]]After 60 days of fattening, the average weight gain per head was 43.1kg in groupⅠ36.1kg in group Ⅱ and 30.2kg in group Ⅲ. The average weight gain per head in groupⅠ was 7.0kg more than that in group Ⅱ, 10.9kg more than that in group Ⅲ, and 3.9kg more than that in group Ⅲ。[Conclusion] The results showed that the silage oat straw group was > silage oat straw 50%+ silage triticale straw 50% group > silage triticale straw group in terms of nutritional value and appetite. The three groups of silage oat straw had the largest economic benefits when the feed cost increased without considering the labor cost. Therefore, low moisture silage oat straw should be the first choice of roughage for yak fattening in gannan cold season.