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“段贤雅林小涛”-知识课堂

宁夏突破滩羊段贤雅林小涛繁育关键技术瓶颈 双羔滩羊产羔率达到160%以上

来源: 北京商报
2024-12-06 03:37:29

最佳回答

“段贤雅林小涛”宁夏突破滩羊段贤雅林小涛繁育关键技术瓶颈 双羔滩羊产羔率达到160%以上

  中新段贤雅林小涛网银川12月5日电 (段贤雅林小涛记者 李佩珊)记者5日从宁夏农业农村厅获悉,聚焦核心技术攻关,宁夏加快破解育种技术瓶颈。目前,宁夏自主培育的双羔滩羊新品系已通过鉴定,选育组建双羔滩羊核心育种群2601只,产羔率达到160%以上,同比提高了50个百分点。

  今年以来,宁夏滩羊良种繁育基地建设专家团队深入实施种业振兴行动,坚持以本品种选育为基础,以龙头企业为主体,以生物育种技术为突破,加强滩羊本品种提纯复壮和新品系培育,有力夯实滩羊产业高质量发展种质根基。

  据了解,宁夏创新开展滩羊基因编辑和全基因组育种技术研究,开发多胎和快速生长基因编辑工具1个、挖掘与滩羊尾脂性状相关的关键基因1个,全基因组测序540只,初步构建起了滩羊遗传评估技术体系。

  同时,聚焦种质资源保护,宁夏加快完善滩羊保种体系,组织修订《滩羊》国标,完成《滩羊志》编写,并组建滩羊活体保种群1.41万只,应用超低温冷冻技术制作保存核心群优质冻精4050支、冷冻胚胎202枚,为新品系培育打牢基础。

  聚焦良繁基地建设,宁夏以盐池县、红寺堡区2个良种繁育基地为重点,在核心区建立优质母羊繁育群36万只,同比提高9.1%。同时,宁夏组织实施国家种羊良补项目,鉴定合格种公羊5146只,推广优质种公羊4300只,提纯复壮滩羊12.9万只。

  此外,宁夏加快提升良种繁育水平,扶优培强繁育示范龙头企业4家,培育国家级种业阵型企业1家、核心育种场3家,优化组建滩羊核心群、选育群、扩繁群3.2万只,同比扩大3.2%。宁夏还搭建盐池滩羊产业研究院、红寺堡天源滩羊良繁技术中心等协同创新平台,推广繁殖母羊分群饲养与高频繁殖、羔羊隔栏补饲与早期断奶等高效繁育技术,带动全区滩羊良种覆盖率达到91%。(完)

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