特克塞尔羊与蒙哈混血羊杂交一代产肉性能的研究

Studies on the Meat Productive Performance of the First Generation Hybrid of Mixed Texel Sheep and Meng-ha Sheep

用特克赛尔公羊改良蒙哈混血羊,杂种羊与本地羊在同样饲养管理条件下,特×蒙哈杂一代6月龄羔羊的宰前活重较同龄蒙哈混血羊高12.24 kg,胴体重高6.66 kg,净肉重高5.87 kg,差异均极显著(P<0.01)。后腿肉重增加1.67 kg,眼肌面积增加8.13 cm2,为蒙哈混血羊的1.80倍,差异显著(P<0.05)。特×蒙哈杂一代胴体重达到国外上等羔羊肉胴体重标准,优质肉率、骨肉比均高于蒙哈混血羊,肉质较细嫩,羊肉品质得到改善。每只杂种羊仅产肉一项比本地羊多收入168.60元,经济效益明显。说明利用特克赛尔羊改良蒙哈混血羊,对提高产肉性能、改善羊肉品质和增加养羊经济效益具有明显的效果。

Texel rams had been used to improve the mixed Meng-ha sheep.For both hybrid sheep and local sheep,with the same conditions of breeding and management,the average body weight at slaughter of the six-month-aged lamb of Texel×Meng-ha F1 was 12.24 kg higher than those of contemporary mixed Meng-ha sheep,6.66 kg higher in body weight and 5.87 kg higher in net meat weight,the differences of which were all obviously significant（P0.01）;its hind leg weight was increased by 1.67 kg,the eye muscle area was 8.13 cm2,1.8 times than that of the mixed Meng-ha sheep,and the difference was significant（P〈0.05）.The body weight of Texel×Meng-ha F1 made the grade as those of the overseas prime lamb,both the high-quality meat rate and flesh-bone ratio were higher than that of the mixed Meng-ha sheep,meat was delicate and soft,and the meat quality had been improved greatly.The meat production of each hybrid lamb had just got 168.60 yuan in excess of the mixed Meng-ha sheep and the economic benefits was obviously.The results showed that it had a favorable effect on the improvement of meat production performance and meat quality and the economic profits to keep sheep using Texel rams to improve the mixed Meng-ha sheep.