不同加工粗饲料对牦牛舍饲育肥的效果

The Effect of Different Processed Coarse Fodders on Yard-feeding Yaks

[目的]通过试验研究筛选适合合作地区牦牛舍饲育肥的来源广泛、适口性好、价格低廉的粗饲料类型。[方法]通过将甘南州现有的燕麦草、青稞草和毗邻地区临夏州的玉米秸秆通过不同方式的加工处理,对阉牦牛进行舍饲育肥。[结果]经过60d的舍饲育肥,微贮青稞草组增重42.75kg,日增重712.5g;青贮燕麦组增重37kg,日增重616.67g;微贮玉米秸秆组增重32.2kg,日增重536.67g。[结论]试验结果表明,从营养价值、对牦牛的适口性、饲料成本、牦牛增重效果五方面综合分析,对冷季在合作市进行牦牛舍饲育肥而言,微贮青稞草优于青贮燕麦优于微贮玉米秸秆。但燕麦在甘南州相对匮乏,大量青贮后用于育肥不太现实。因此,微贮青稞草和微贮玉米秸秆应作为牦牛育肥的首选粗饲料。

[objective] Through the experimental study on screening for cooperation in yak barn feeding fattening the sources, good palatability, cheap roughage type. [method] through the Gannan Area existing LinXiaZhou tall oat grass, barley straw and adjacent to the area of corn straw in different ways of processing, for stabling yan yak fattening. [results] After 60 days of stabling and fatten raising, highland barley grass group weight 42.75 kg with 712.5 g daily gain ; Silage oat group of 37 kg weight with daily gain 616. 67 g;Growing reposited maize straw set weight 32. 2 kg, weighing 536. 67 g. [conclusion] the results showed that the nutritional value, palatability of yak, feed costs, the effect of yak weight comprehensive analysis of five aspects of the cold season in cooperation, yak fattening reposited highland barley grass is better than the silage oats which is superior to the WeiZhu maize straw, although relatively lack of oats in Ganan Area,a large number of silage for fattening. Therefore, reposited highland barley grass and reposited corn stalk should be as the first selection of yak fattening roughage.