中文摘要：

为了提高新疆羊肉生产的效率和产量,满足新疆消费市场对羊肉的强烈需求.本文就新疆养羊业现状、品种培育和多胎品种羊引进等问题进行总结和分析.依据新疆绵羊生产实际情况,提出绵羊育种和改良技术措施：绵羊新品种培育的分子育种方法（基因锚定育种法和基因连续聚合育种法）能够有效减少品种选育的世代数,准确、快速实现针对目的基因的分子育种目标;绵羊分子繁育体系建立方法可准确、高效完成绵羊新品种的示范、推广和应用;将绵羊分子育种与繁育体系应用于新疆多胎羊引种、改良、育种和生产等实践中,组建多胎导入群、多胎生产群和多胎育种群,实现新疆绵羊新品种选育与推广同步进行.绵羊分子繁育技术能够快速增加新疆绵羊繁育率和羊肉产量,推动新疆养羊业向更好、更高水平发展.

英文摘要：

In order to improve the efficiency and yield of Xinjiang mutton production, this paper wassummarized and analyzed the Xinjiang mutton production, breeding and multi-fetal sheep introduction.In accordance with the current situation of Xinjiang mutton sheep industry,we given the suggestion asfollows： We need to carry out the sheep molecular breeding methods （major gene anchoring breedingmethod and major gene continuous polymerization breeding method）, which can reduce of breeding gen.erations, rapidly completed the new sheep varieties breeding.We should constuct the sheep molecularbreeding system, which can accuratly and efficiently complete application, demonstration and promotionof the new sheep varieties.All of these methods above could be used in Xinjiang multi-fetal sheep in.troduction, improvement, breeding and production. We also need to established import group, produc.tion group and nucleus group for multi-fetal sheep breeding, which could achieve sheep varieties breed.ing and application synchronously in Xinjiang.Sheep molecular breeding technology will rapidly increasethe rate of Xinjiang sheep breeding and production, promote development of Xinjiang sheep industry.