摘要
本试验选用黔江县川南山地黄牛阉公牛 12头 ,随机分成 3组 (两个试验组 ,一个对照组 )进行放牧和放牧加补饲的肥育试验。经过 60d的试验 ,两个试验组 (分别补饲混合精料和补饲单一精料 )的ADG分别为 595.83g和 4 94 .17g ,比对照组的ADG 155.83g分别提高了 2 82 .36%和2 17.12 % ,肥育毛利润分别为 75.59元 /头和 53.2 4元 /头 ,比对照组的 4 6.75元 /头分别增加 2 8.84元 /头和 6.4 9元 /头。补饲混合精料组的精料增重比 ( 2 .86 1)比补饲单一精料组的精料增重比 (3.52 1)下降 18.75%。试验结果表明 ,与放牧相比 ,放牧加补饲 (尤其是补饲混合精料 )能极显著提高日增重、缩短肥育时间、增加经济效益 。
bullocks of Chuannan yellow cattle randomly were assigned to three groups including two experimental groups(concentrate supplementary feeding groups) and one control group(grazing group) to this fattening experiment.The result of the sixty day experiment showed that average daily gain of two experimental groups was 595.83 g and 494.17 g respectively, improving 282.36% and 217.12% in comparison with that of control group (155.83 g), gross profit per animal of fattening were 75.59 yuan and 53.24 yuan respectively, improving 28.84 yuan and 6.49 yuan by contrast to that of control group ( 46.75 yuan).This experiment showed that the concentrate supplementary feeding could remarkably promote daily gain,reduce fattening time,add to income. It will be a good way of cattle fattening in countryside .
出处
《四川畜牧兽医学院学报》
2000年第4期12-15,共4页
Journal of Sichuan Institute of Animal Husbandry and Veterinary Medicine
基金
重庆市科委资助项目!
本院 2 0 0 0届毕业生李安林
杨磊
刘启富参加该项研究工作
关键词
川南山地黄牛
放牧
补饲
肥育方式
Chuannan yellow cattle,Grazing,Supplementary feeding,Cattle fattening, Way
