杜泊羊与河南小尾寒羊杂交后代的肉用性能研究

Study on the Meat Performance of the Hybrid Progeny between Dorper Sheep and Henan Small-tailed Han Sheep

试验以杜泊羊为父本、河南小尾寒羊为母本进行杂交,研究了其后代的肉用性能变化。结果表明,杂交后代的体型外貌发生了明显改变,体高降低,胸宽、胸围、管围、尻宽都有显著增加;杜寒杂一代的肉用性能指标都比河南小尾寒羊有所提高,杜寒杂一代宰前体重比河南小尾寒羊高3kg,胴体重高2.8kg,屠宰率高2.2%,净肉重高2.4kg,净肉率高3.78%,差异显著(P<0.05)。

The changes of the meat performance of the hybrid progeny with Dorper Sheep as the paternal parent and Henan Small-tailed Han Sheep as the maternal parent were studied.The results showed that the appearance of the hybrid progeny had obvious changes,the body height decreased,while chest width,chest circumference,shank circumference and thurl width significantly increased.The meat performance indices of F1 of Dorper Sheep and Henan Small-tailed Han Sheep were higher than that of Henan Small-tailed Han Sheep.The slaughter weight of F1 of Dorper Sheep and Henan Small-tailed Han Sheep was 3 kg higher,the carcass weight was 2.8 kg higher,slaughter rate was 2.2% higher,the net meat weight was 2.4 kg higher and the net meat rate was 3.78% higher than Henan Small-tailed Han Sheep,with significant difference（P0.05）.