| 凉山半细毛羊种质特性的研究 |
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| 引用本文： | 陈圣偶,张红平,李利,吴登俊,李小勤,徐文福,赵兴元.凉山半细毛羊种质特性的研究[J].四川农业大学学报,2002,20(3):270-274. |
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| 作者姓名： | 陈圣偶 张红平 李利 吴登俊 李小勤 徐文福 赵兴元 |
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| 作者单位： | 1. 四川农业大学,动物科技学院,四川,雅安,625014
2. 凉山彝族自治州畜牧局,四川,西昌,615000 |
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| 基金项目： | 国家“九五”科技攻关项目“凉山半细毛羊的选育提高”部分内容 |
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| 摘 要： | 对凉山半细毛羊的产毛、产肉性能、繁殖性能、生长发育、生理生化性状、血液蛋白多态性和染色体核型作了全面的介绍。凉山半细毛羊成年公羊体重 85 2 5± 3 2 5kg、母羊 4 8 11± 4 13kg ;剪毛量分别为 6 5 5± 0 12kg和4 12± 0 32kg ;毛长分别为 18 12± 0 5 1cm和 15 74± 0 2 1cm ;羊毛主体细度 4 8～ 5 0支。 6月龄肥羔胴体重16 83± 0 76kg ,屠宰率为 5 0 79%。母羊初配年龄为 10～ 12月龄 ,平均产羔率为 111 36 %。染色体数目 2n =5 4。在长期的精心选育和当地生态条件的影响下 ,凉山半细毛羊的生理生化性状产生了不同程度的变化 ,以适应凉山地区的生态条件
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| 关 键 词： | 半细毛羊 种质特性 产肉性能 产毛性能 生长发育 生理生化性状 染色体核型 |
| 文章编号： | 1000-2650(2002)03-0270-05 |
| 修稿时间： | 2002年3月4日 |
Study on Breed Characteristics of Liang-shan Semi-wool Sheep |
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| CHEN Sheng ou ,ZHANG Hong ping ,LI Li ,WU Deng jun ,LI Xiao qing ,XU Wen fu ,ZHAO Xin yuan.Study on Breed Characteristics of Liang-shan Semi-wool Sheep[J].Journal of Sichuan Agricultural University,2002,20(3):270-274. |
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| Authors: | CHEN Sheng ou ZHANG Hong ping LI Li WU Deng jun LI Xiao qing XU Wen fu ZHAO Xin yuan |
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| Institution: | CHEN Sheng ou 1,ZHANG Hong ping 1,LI Li 1,WU Deng jun 1,LI Xiao qing 1,XU Wen fu 2,ZHAO Xin yuan 2 |
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| Abstract: | Some traits and characteristics of Liangshan semi wool sheep are introduced, such as wool and mutton performance, reproduction performance, growth and development, physiological and biochemical character, blood protein polymorphism and chromosome karyotype. The average body weight of ram and ewe is 85 25±3 25?kg and 48 11±4 13?kg, respectively. The average wool yield of ram is 6 55±0 12?kg and ewe is 4 12±0 12?kg. The wool length of ram and ewe is 18 12±0 51 and 15 74±0 21?cm respectively. Its main fineness is 48～50?s. The carcass weight of fed lamb is 16 83±0 76?kg and its dressing percentage is 50 79% in 6 month. The first mating of ewe is 10～12 month and average lambing rate is 111 36%. The number of chromsome is 2n=54. Through long term breeding, some physiological and biochemical traits of Liangshan semi wool sheep have changed in order to adapt to higher altitude and lower oxygen pressure. |
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| Keywords: | SEMI WOOL SHEEP BREED CHARACTERISTIC MUTTON PERFORMANCE WOOL PERFORMANCE GROWTH AND DEVELOPMENT PHYSIOLOGICAL AND BIOCHEMICAL CHARACTER CHROMSOME KARYOTYPE |
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