摘要
分别以考尔木母羊和考尔木公羊杂交羔羊(R×C)、考尔木母羊和罗姆尼公羊杂交羔羊(C×C)为试验对象,在优质人工草地上划区轮牧,进行考尔木母羊繁殖性能和羔羊育肥定期监测试验。结果表明:二系统羔羊初生重和断奶重几乎一样;断奶后,R×C系统羔羊体重比C×C系统高,7月龄出栏体重和1岁龄体重分别为:R×C系统35 5、44 0kg,C×C系统30 7、39 9kg;3月龄(断奶重)羔羊日增重最高,R×C和C×C系统分别为203 3、180g/d。系统间母羊繁殖性能指标基本一样。牧草生长季羔羊育肥效益分别为:R×C系统1925元/hm2、C×C系统1781元/hm2,为原系统(860元/hm2)的2 24、2 0倍。
The trial has been carried out on the project demonstration farm of pastoral sheep system Romney ram × Cormo ewe crossed breed lamb and Cormo ram × Cormo ewe lamb grazed on pasture, and the Cormo ewe reproductive performance and lamb fattening were monitored The results showed that birth weight and weaning weight of R×C lamb and C×C lamb were almost same, 7 month old selling weight and 1 year old weight for R×C lamb were 355 kg and 440 kg respectively, whereas C×C lamb were 307 kg and 399 kg Weight gain daily were the highest in 3 month old for R×C lamb and C×C lamb, 2033 g/d and 180 g/d respectively Reproductive performance of ewe were similar within systems Lamb fattening incomes was 1925 yuan RMB/hm2 for R×C, 1781 yuan RMB/hm2 for C×C , which was 224 times and 2 times comparing with the previous system (860 yuan RMB/hm2).
出处
《草业科学》
CAS
CSCD
2003年第4期20-22,共3页
Pratacultural Science
基金
科技部社会公益研究专项资金项目(2001DIB00149)
国家科委"九五"科技攻关项目(96 016 02 01)资助
