Henan University of Animal Husbandry and Economy, Zhengzhou, 450046, Henan, China.
Lvyuan Mutton Sheep Development Co., Ltd., Wuyang, 462400, Henan, China.
Trop Anim Health Prod. 2020 Nov 23;53(1):35. doi: 10.1007/s11250-020-02453-w.
Huang-huai sheep are a new multiparous mutton sheep breed that has been cultivated by domestic scientific research institutes, governments, and sheep farms in China. Huang-huai sheep were bred using Dorper sheep as a sire and Small-tailed Han sheep as a dam. The breeding of Huang-huai sheep started in 2003, and three stages have been carried out: crossbreeding innovation, fixation in a two-way-crossbred closed flock, and herd propagation. A pilot test of Huang-huai sheep was conducted on 6 sheep farms from 2017 to 2018, and hereditary properties and production performance were evaluated in 2019. Huang-huai sheep were identified on site by the National Livestock and Poultry Resources Committee of China in December 2019 and approved as a new multiparous mutton sheep breed in China. The genetic distance showed that Huang-huai sheep are most closely related to Dorper sheep, Luxi black-headed sheep, and Small-tailed Han sheep, but the genetic distances are subspecies (0.02-0.20) each other. The body weights of adult Huang-huai sheep are 98.1 ± 5.2 kg (♂) and 71.7 ± 3.5 kg (♀), and those of 6-month-old Huang-huai sheep are 58.50 ± 6.55 kg (♂) and 52.45 ± 5.67 kg (♀). The slaughter rates of 6-month-old sheep are 56.02 ± 1.25% (♂) and 53.19 ± 1.19% (♀). The estrus cycle of Huang-huai sheep is 19.32 ± 2.8 days, the first estrus cycle occurs at 168 ± 12 days, the annual lambing rate of ewes is 252.82% ± 10.69%, the survival rate of lambs is 95.79 ± 0.95%, and the number of weaned lambs per ewe per year is 2.38 ± 0.14. The growth performance, carcass quality, and reproductive performance of Huang-huai sheep have been improved, resulting in considerable economic and social benefits and broader market prospects. This breed represents a new multiparous mutton sheep breed adapted for industrial sheep farms in China.
槐山羊是中国国内科研单位、政府和羊场共同培育的肉用绵羊新品种。它是以杜泊羊为父本、小尾寒羊为母本杂交育成，于 2003 年开始培育，历经杂交创新、横交固定和扩群繁育 3 个阶段。2017-2018 年在 6 个羊场进行槐山羊试点，2019 年对其进行遗传性及生产性能评定。2019 年 12 月，槐山羊通过中国国家畜禽资源委员会现场审定，并被批准为中国肉用绵羊新品种。遗传距离分析表明，槐山羊与杜泊羊、莱芜黑山羊和小尾寒羊的亲缘关系最近，遗传距离均在亚种间（0.02-0.20）。成年槐山羊公、母羊体重分别为 98.1±5.2kg 和 71.7±3.5kg，6 月龄公、母羊体重分别为 58.50±6.55kg 和 52.45±5.67kg。6 月龄羊屠宰率公、母羊分别为 56.02±1.25%和 53.19±1.19%。槐山羊发情周期为 19.32±2.8d，初情期为 168±12d，母羊年产羔率为 252.82%±10.69%，羔羊成活率为 95.79%±0.95%，母羊年均产羔数为 2.38±0.14 只。槐山羊生长性能、胴体品质和繁殖性能得到了显著提高，产生了显著的经济效益和社会效益，具有广阔的市场前景。该品种代表了适合中国工厂化羊场的肉用绵羊新品种。
