为在阿克苏地区科学饲养和合理利用萨福克羊提供科学依据,我们以引进的澳系萨福克的繁殖后代为对象,观测其生产发育、繁殖性能、抗病力等主要性状。结果表明:阿克苏地区纯繁萨福克羊与原产地萨福克羊一月龄体重指标差异不显著(P>0.05)。而3月龄公、母羊体重为26.83 kg和36.14 kg,低于原产地测定结果。繁殖性能表现为季节性发情、繁殖率下降和母性不强。母羊的平均繁殖率为118.68%;目前,种羊场未断奶羔羊成活率为82%,断奶到周岁的成活率92%,成年羊年成活率95%。结论:萨福克纯繁羊在阿克苏地区生态条件下可以生存、繁殖和发展;表现为季节性发情规律;对阿克苏地区的地理环境的适应能力一般。

To Provide the scientific basis for feeding Suffolk sheep in Aksu region. We select the off-spring of blackhead Suffolk sheep as the object to observe the main characters include production de-velopment,reproductive performance, disease resistance and so on. The results showed that the bodymass index is no significant difference in one-month-old purebred Suffolk sheep and origin Suffolksheep in Aksu region. The body weight of three-month and one year old(weaning) are lower than ori-gin Suffolk sheep,the differences were highly significant(P <0.01). Reproductive performance are season-al estrus, decline the reproduction rate and motherhood. The average reproduction rate was 118.68%;currently, the stud farm late weaning lamb survival rate was 82%, survival rate from weaning to theage of sheep was 92%, year survival rate of adult sheep was 95%. Conclusion: purebred Suffolk sheepin the ecological conditions in Aksu region can survive 、multiply and develop; performance of seasonalestrus law; to the geographical environment of Aksu region showed better adaptability.