邦德羊改良甘肃高山细毛羊的效果

以邦德羊为父本、甘肃高山细毛羊为母本进行杂交改良试验,并对杂交F1代羔羊(简称邦甘细)的生长性能和屠宰性能进行分析。生长观测表明,邦甘细初生体质量、4月龄体质量、6月龄体质量和12月龄体质量分别比甘肃高山细毛羊纯繁组(简称甘高细)高14.14%、17.90%、28.17%和33.97%(P0.01)。4月龄前平均日增量、4~6月龄平均日增量、12月龄前平均日增量极显著高于甘高细(P0.01)。屠宰结果表明,邦甘细4月龄、6月龄和12月龄的胴体质量和屠宰率均高于甘高细,且各年龄段胴体质量差异极显著(P0.01)。说明,以邦德羊为父本对甘高细进行杂交改良的F1代羔羊的生产性能和屠宰性能显著提高,改良效果明显。

Improvement Effect of Bond Sheep on Gansu Alpine Merino Sheep

Bond sheep was used as male parent and Gansu Alpine Merino sheep was used as female to measure and analyze the growth performance and slaughter performance of the hybrid F₁ generation of lamb. Growth observation showed that the average birth weight, 4 month old weight, 6 month old weight, 12 month old weight were higher than the control group for 14.14%, 17.90%, 28.17%, and 33.97%, respectively, and difference was extremely significant(P<0.01). The average daily gain before 4 month old, 4-6 month old and the average daily gain before 12 month old were significantly higher than Gansu Alpine Merino(P<0.01). Slaughter results showed that: the carcass weight and the dressing percentage of experimental group in the 4 month old, 6 month old and 12 month old were both higher than the control group and the hot carcass weight were extremely significant(P<0.01). Therefore, the production performance and slaughter performance of F₁ generation hybrid lamb can be improved significantly, the Bond sheep can be used as male parent to improve Gansu Alpine Merino sheep.