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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (35): 30-34.doi: 10.11924/j.issn.1000-6850.2014-1469

所属专题： 畜牧兽医

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

高寒牧区不同杂交组合羔羊生产性能比较

王巧玲,花立民,杨思维   

  1. (甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省农业大学-新西兰梅西大学草地生物多样性研究中心,兰州 730070）
  • 收稿日期:2014-05-21 修回日期:2014-05-21 接受日期:2014-08-18 出版日期:2015-03-18 发布日期:2015-03-18
  • 通讯作者: 王巧玲
  • 基金资助:
    农业部公益性行业项目“牧区生态高效草原牧养技术模式研究与示范”(No.201003061；No.201003019)；国家科技支撑计划项目“生物多样性保护与濒危物种保育技术研究及示范”(2012BAC01B02-4)；草业生态系统重点实验室（甘肃农业大学）开放课题基金(CYZS-2011013)。

Comparison on the Production Performance of Different Hybridized Lambs in
Alpine Pastoral Region

Wang Qiaoling, Hua Limin, Yang Siwei   

  1. (College of Grassland Science, Gansu Agricultural University/ Key Laboratory of Grassland Ecosystem of the Ministry of Education/ Gansu Agricultural University＆Massey University Research Center for Grassland Biodiversity, Lanzhou 730070)
  • Received:2014-05-21 Revised:2014-05-21 Accepted:2014-08-18 Online:2015-03-18 Published:2015-03-18

摘要： 为提高高寒牧区甘肃高山细毛羊及藏羊的生产性能，引进父本欧拉型藏羊、邦德、甘肃高山细毛羊，分别与本地高山细毛羊及本地藏羊母本进行杂交试验。结果表明：欧拉型藏羊×本地藏羊组合羔羊初生重为4.63 kg，显著高于其他杂交组合；邦德与本地藏羊杂交羔羊的1~5月各月龄体重整体表现最好，且日增重达到0.19 kg/d，均显著高于其他杂交组合；各杂交组合间胸深、胸围、管围、尻宽以及尻长均无显著性差异(P＞0.05)；欧拉型藏羊×本地高山细毛羊组合的屠宰率最高，为46.29%，欧拉型藏羊×本地藏羊组合的眼肌面积和GR值均显著高于其他杂交组合；本地藏羊杂交组合的各内脏重高于本地高山细毛羊；欧拉型藏羊×本地藏羊组合羔羊的失水率、熟肉率以及嫩度均最高，分别为38.70%、64.40%、71.18N，本地藏羊纯繁的pH最高，为7.1；各杂交组合的肉色、大理石花纹以及膻味评定结果一致。

关键词: 农业, 农业

Abstract: In order to improve the production performance of lamb in alpine pastoral region, the trail introduced Ola Tibetan sheep, Bond, Gansu Alpine Merino as sire to cross the local alpine merino and the local Tibetan sheep. The result showed that the birth weight of Ola (♂)×Tibetan sheep (♀) was 4.63 kg, which was significantly higher than other crossbreed lambs (P＜0.05); the body weight of Bond (♂) ×Tibetan sheep (♀)from 1 to 5 months were higher than others, and the daily body weight gain (0.19kg/d) was significantly higher than others (P＜0.05). There were no difference in the chest wide, chest girth, circumference of cannon bone, rump width and length among different hybridized lambs (P＞0.05). The dressing percentage of Ola (♂)×local alpine merino (♀) was 46.29%, the highest one in all crossbreeds. The loin eye area and GR value of Ola (♂)×local Tibetan sheep (♀) were higher than others, but did not reach significant difference (P＜0.05). The viscera weight of crossbreed Tibetan sheep was higher than Gansu alpine merino. The ratio of holding water, cooked meat percentage, tenderness of Ola (♂)×local Tibetan sheep (♀) were 38.70%, 64.40%, 71.18 N, respectively , which were higher than others. The pH of the purebred local Tibetan lamb was 7.1, which was the highest value in crossbreed lambs. The assessment of meat color, marbled meats, mutton odor was same among different hybridized lambs. Considering production in practice, the crossbreed of Bond (♂)×local Tibetan sheep (♀)has potential value for the lamb production because of quick growth and the highest birth body weight.