湖寒杂交F1代与小尾寒羊生产性能比较

Determination of production performance of F1 hybrid sheep of Hu sheep and Small Tailed Han sheep

本文对湖寒杂交一代母羔和纯种小尾寒羊母羔生产性能进行了对比,测定两个组的增重情况、体尺指标以及F1代繁殖性能和泌乳性能。结果表明:杂交一代的生长发育快于小尾寒羊,6月龄活重为39.60 kg,比小尾寒羊提高4.37 kg(P<0.05),1~6月龄的平均日增重197.01 g,比小尾寒羊高出19.57g(P<0.05),且差异均显著;杂交一代的体长和胸围要显著高于小尾寒羊(P<0.05),而体高和管围要比小尾寒羊低;杂交一代与小尾寒羊的产羔情况基本接近,无显著差异(P>0.05);杂交一代母羊产后1~30 d平均日泌乳量为1.23 kg,要比小尾寒母羊的0.93 kg高33.1%。总体而言,杂交的经济价值较高。

The present project was conducted to compare production performance of F1 hybrid sheep of Hu sheep and Small Tailed Han sheep and with Small Tailed Han sheep. The results indicated that average weights of 6 month and month weights from first to sixth month, body length and heart girth were higher in F1 hybrid sheep than that of Small Tailed Han sheep （P〈0. 05） ; while, the body height and can- non circumference were significantly lower compared with Small Tailed Han sheep group （ P〈0. 05）. In addition, reproduction performance of the F1 hybrid sheep had no significant difference from those Small Tailed Han sheep （P〉0. 05 ） , The average daily milk of 30 d yield was 1. 231 kg, 33. 1% higher than Small Tailed Han sheep group. Together, hybrid generation has good production performance and economic value.