【摘要】 天华肉羊是兰州大学联合10余家单位以甘肃高山细毛羊为母本,南非肉用美利奴羊为父本进行杂交,育成的我国首个适应高海拔、寒冷、半干旱自然环境的肉用细毛羊新品种,于2024年3月获得国家畜禽新品种(配套系)证书。天华肉羊肉用特征明显,体格较大;被毛纯白同质,闭合性良好;公母羊均无角。成年公、母羊平均体重分别为100.55、 65.45 kg,平均产毛量分别为6.10、 4.22 kg;羊毛主体细度21.6～23.0 μm。6月龄公、母羊屠宰率分别为51.45%、 50.45%。母羊常年发情,产羔率135%。目前群体规模达52.4万只,培育阶段累计出栏50余万只,经济效益显著。更多还原

【Abstract】 Tianhua mutton sheep was bred by progressive hybridization using Gansu Alpine fine wool sheep as female parent and South African mutton merino sheep as male parent by Lanzhou University and more than other ten units, which is the first mutton merino breed in alpine, cold and semi-arid areas in China. Tianhua mutton sheep was approved by the National Livestock and Poultry Genetic Resources Committee in March 2024. Tianhua mutton sheep have typical mutton and merino sheep characteristics,and large body size. The coat of Tianhua mutton sheep is pure white, homogeneous, good closure. Both females and males are hornless. The average body weights and fleece yield for adult males and females are 100.55 and 65.45 kg, 6.10 and 4.22 kg,respectively. The wool fineness is mainly within 21.6～23.0 μm. The slaughter rates of male and female sheep at 6 months of age are 51.45% and 50.45%, respectively. The ewes can be perennial estrus, and lambing rate of multiparous ewes can reach to 135%. At present, the stock size of Tianhua mutton sheep reaches to 524,000, and more than 500,000 sheep have been slaughtered during the breeding stage, which has made remarkable economic benefits.更多还原