尤溪县戴云山羊体重体尺性状选育效果研究

Study on Weight and Size Breeding Effect of Daiyun Goat in Youxi County

摘要: 比较研究了选育前后戴云山羊12月龄的体重体尺性状。结果表明：经过连续2年的选育，12月龄戴云山羊公羊和母羊的体重体尺性状均有不同程度的提高，其中体重的增长幅度最大；公羊的体重、体高、体长、胸围的增长幅度分别为4.48%、1.99%、2.06%、1.66%，母羊的体重、体高、体长、胸围的增长幅度分别为2.29%、1.39%、0.77%、1.36%。但选育前后戴云山羊公羊测定的各项生产性能指标差异均未达显著水平（P>0.05），选育前后戴云山羊母羊测定的各项生产性能指标差异也均未达显著水平（P>0.05），说明戴云山羊体重体尺性状的遗传进展较慢。

Abstract: The weight and size traits of Daiyun goats in 12-month-old before and after breeding were compared and studied. The results showed that the weight and size traits of 12-month-old ram and ewe were improved in different degrees after two consecutive years of breeding. Among them, weight gain was the largest. The increase of weight, height, length and chest circumference of rams were 4.48%, 1.99%, 2.06%, 1.66%, while ewes were 2.29%, 1.39%, 0.77% and 1.36%, respectively. However, there was no significant difference in the production performance indexes of rams before and after breeding (P>0.05), and also the ewes(P>0.05), which indicated that the genetic progress of weight and size traits in Daiyun goats was slow.