| 牦牛三元杂交的改良方法 |
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| 引用本文： | 余劲聪,潘春,王苏,字向东. 牦牛三元杂交的改良方法[J]. 畜禽业, 2006, 0(8): 39-41 |
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| 作者姓名： | 余劲聪 潘春 王苏 字向东 |
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| 作者单位： | 西南民族大学动物科学国家民委重点实验室,四川,成都,610041 |
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| 摘 要： | 牦牛对高寒环境有良好的适应性,但培育程度低。传统的藏黄牛×牦牛、引进种牛自然交配以及冷冻精液、人工授精的手段都存在诸多问题。三元杂交在一定程度上解决了牦牛种间杂交受胎率、繁殖率、犊牛成活率低的问题,并且杂种优势显著,是牦牛改良的一条新途径。
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| 关 键 词： | 牦牛 三元杂交 杂种优势 改良 |
| 文章编号： | 1008-0414(2006)04(下)-0039-03 |
| 修稿时间： | 2006-01-12 |
Three-Element Crossbreed for Yak''''s Improvement |
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| YU Jin-cong,PAN Chun,WANG Su,ZI Xiang-dong. Three-Element Crossbreed for Yak''''s Improvement[J]. Livestock and Poultry Industry, 2006, 0(8): 39-41 |
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| Authors: | YU Jin-cong PAN Chun WANG Su ZI Xiang-dong |
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| Abstract: | The adaptability of yak to high and cold conditions is rather favorable, but its breed is low. The methods occur many problem that traditionally Tibet cattle×yak, natural mating between imported breed and local yak, freezing sperm and artificial fertilization. Three-element crossbreed have resolved these problems in a way, lower rates such as fecundation, reproduce, survivance of calf, and that heterosis is notable, which has become another route for yak's improvement. |
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| Keywords: | Yak Three-element crossbreed Heterosis Improvement |
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