不同产羔季节细毛羊生产性能比较分析

[目的]研究西北地区不同产羔季节羔羊的生产性能.[方法]以甘肃高山细毛羊为研究对象,研究不同产羔季节对其生产性能的影响.[结果]冬羔公、母羔的初生重比春羔分别提高28.38％和15.10％,冬羔公、母羔断奶体重比春羔分别提高13.58％和5.99％,冬羔公、母羔1.5岁体重比春羔分别提高13.90％和12.97％;冬羔的污毛量、净毛量比春羔高9.72％和4.22％;冬羔的出生成活率、断奶成活率、育成成活率比春羔分别高9.53、12.98和14.43个百分点.[结论]在饲养管理条件较好的地区,冬羔的生产性能高于春羔.

Comparative Study on the Production Performance of Fine-wool Sheep with Different Lambing Season

[Objective] The research aimed to study the production performance of lambs in different lambing seasons in northwest areas.[Method] Taking Gansu alpine fine-wool sheep as research object,the effects of different lambing seasons on their production performances were studied.[Result] The birth weight of male and female winter lambs increased than spring lambs by 28.38％ and 15.10％ respectively.The weaning weight of male and female winter lambs increased than spring lambs by 13.58％ and 5.99％ respectively.1.5-year-old weight of male and female lambs increased than spring lambs by 13.90％ and 12.97％ respectively.The wool yield and clean wool yield of winter lambs increased than spring lambs by 9.72％ and 4.22％ respectively.The survival rate of birth,weaning survival rate and breeding survival rate of winter lambs were higher 9.53,12.98 and 14.43 percentage points than spring lambs.[Conclusion] In the areas with better feeding and management conditions,the production performances of winter lambs were better than spring lambs.