| 红原县牦牛群结构调查报告 |
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| 引用本文： | 谢荣清,杨平贵. 红原县牦牛群结构调查报告[J]. 畜禽业, 2006, 0(10): 32-33 |
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| 作者姓名： | 谢荣清 杨平贵 |
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| 作者单位： | 四川省草原科学研究院,成都,犀浦,611731 |
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| 摘 要： | 对红原县分户经营条件下的牦牛群结构进行了随机抽样调查,结果表明3岁以下、3～12岁、13岁以上牦牛占总数的比例分别为31.56%、65.76%、2.68%;适龄母牦牛比例达48.61%,5岁以下阉、公牦牛和非生产性牦牛比例分别占28.40%和45.02%。
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| 关 键 词： | 牦牛 畜群结构 调查研究 |
| 文章编号： | 1008-0414(2006)05(下)-0032-02 |
| 修稿时间： | 2006-03-17 |
Research Report on Population Structure of Yak |
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| XIE Rong-qing,YANG Ping-gui. Research Report on Population Structure of Yak[J]. Livestock and Poultry Industry, 2006, 0(10): 32-33 |
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| Authors: | XIE Rong-qing YANG Ping-gui |
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| Abstract: | Researching population structure of yak on the condition of individual management with random sample shows that the percents of below 3-year old,3 to 12-year old,boyond 13-year old are 31.56,65.76,2.68,respectively.Productive female yak is 48.61%,ox yak below 5-year and non-productive yak are 28.40% and 45.02%. |
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| Keywords: | yak population structure Researching |
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