不同补饲水平对盘江黄牛放牧育肥增重的效果

Effect of Different Level of Complemental Feed on Gaining Weight of Panjiang Cattle under Condition of Grass Finishing

选用60头盘江黄牛公牛,随机分为4个组,其中3个试验组、1个对照组,进行不同补饲水平的育肥试验。在补饲精料每千克含DM0.884kg,CP0.143kg,NEmf7.03MJ的饲料情况下,补饲组的增重水平和育肥效益,明显优于不补饲组。其中以补饲2.5kg组的效果最好,其日增重达到0.783kg,比对照组0.231kg提高239%;育肥收入和日均收入分别为218.79元和2.43元,比对照组的145.53元和1.62元增加收入33.6%。表明放牧补饲能提高日增重,缩短养牛时间,增加养牛收入。

The finishing trial with 60 Panjiang cattle divided randomly into 3 treatments and 1 check was carried out.With the complemental grain feeding of DM0.88kg, CP0.143kg, NEmf7.03MJ per kilogram, both gaining weight and benefit of finishing for treatments are obviously better than CK, of which the grain feeding group of 2.5kg is the best with daily gain of 0.783kg and 239% higher than CK (0.231kg), and total daily income reach 218.79 and 2.43 yuan and 33.6% higher than CK (145.53, 1.62yuan). The result indicated that grass finishing could improve the daily gain,shorten feeding period, and increase income of feeding cattle.