营养调控饲养技术对母羊繁殖性能的影响

Effect of nutrition regulation raising technology on reproductive performance of female sheep

为缩短母羊繁殖周期，提高繁殖生产效率，2013年8月至2015年8月于宁夏平罗县肉羊繁育中心选择2-2．5岁舍饲健康空怀肉杂羊（杜泊羊×小尾寒羊）、滩寒杂种羊、小尾寒羊母羊共120只，随机分为4组，开展了分段营养调控饲养技术对母羊繁殖性能影响的研究。文章统计了两年的试验数据，结果表明：母羊采取分段营养调控饲养，羔羊采取早期补饲的饲养技术可显著提高母羊繁殖效率，能达到2年3胎或1年2胎。羔羊于10日龄进行早期补饲，60日龄断奶，能够促进生长，缩短断奶时间，提高养殖效益。

In order to shorten the breeding cycle and improve the production efficiency of breed- ing ewes, in this study we selected 2~2.5 years feeding healthy nonpregnant miscellaneous meat sheep, Tan Ran crossbreed sheep and small tail Han sheep 120 from sheep breeding center of Pin- gluo County in Ningxia to perform the experiment. All the sheep randomly divided into four groups to study the effect of nutrition regulation feeding technology on the reproductive performance of sheep from 2013.8 to 2015.8. After two years of experimental study, the results showed that the sectional nutrition regulation feeding technique, early feeding and weaning technology has signif- icantly improved the reproductive efficiency of the sheep, could achieve three births two year or two birth one year. Lambs fed at the age of 10 days and weaned at 60 days, could promote the growth rate, shorten the time of weaning and raise the efficiency of breeding.