无角陶赛特羊与青海半细毛羊杂交效果测定

Crossbreeding Effect of Poll Dorset with Qinghai Semifine Wool Sheep

以无角陶赛特羊做父本与青海半细毛羊杂交,杂一代羊初生重和断奶重分别比青海半细毛羊提高:公羔0.16和4.27kg,母羔0.14和4.17kg;4月龄杂一代公、母羊体高较青海半细毛羊提高6.27cm和4.21cm,体斜长提高5.39cm和4.81cm;羊毛纤维细度与青海半细毛羊差别不显著(P>0.05),6月龄公、母羊胴体重提高6.74kg和4.09kg,屠宰率分别提高6.55个百分点和5.52个百分点。

Qinghai semifine wool sheep was hybridizool with Poll Dornet Sire to observe the crossbreeding effect. The results showed that the birth weight and weaning weight of F1 male and female lamb increased 0.16 and 4.27kg,0.14 and 4.17kg than those of Qinghai semifine wool sheep, respectively. The withers height of F1 male and female lamb at the age of four months increaseol 6.27 and 4.21cm and the body length increased 5.39 and 4.81cm than that of Qinghai semifine wool sheep, recpectively. The wool fineness of F1 was not signifieant difference with that of Qinghai semifine wool sheep（ P 〉 0.05 ）, The carcass weight of F1 male and female lamb increased 6.74 and 4.09kg and the dressing percentage of them increased 6.55 and 5.52 percent points at the age of six months, respectively.