| 牦牛适应少氧环境的生态生理特性 |
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| 引用本文： | 张容昶.牦牛适应少氧环境的生态生理特性[J].甘肃农业大学学报,1985(3). |
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| 作者姓名： | 张容昶 |
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| 作者单位： | 甘肃农大畜牧系 |
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| 摘 要： | 本文根据国内外有关资料,阐述了牦牛适应少氧环境的生态生理特性,主要表现在胸腔和心、肺脏发达;气管粗短,呼吸、脉搏变化幅度大;血液中红细胞和血红蛋白含量高,血红蛋白类型组成变化较特殊,初生牦牛犊血液中含有早期胎儿血红蛋白等。并对上述特性作了初步分析和讨论。本文为牦牛选育、饲牧管理提供了一些依据。
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Ecological and Physiological Characterastics of Yak in Adapting to the Enviroment of Low Oxygen--content in the Air |
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| Abstract: | This paper, based on the information obtained both from home and abroad, discusses the ecological and physiological characte rastics of yak in adapting to the enviroment of low oxygencontent in the air. Yak have well-developed heart and lungs, and their tracheas are thick and short. The range of respir ation and pulse of yak varies greatly. Yak have a high content of red cell and hemoglobin in the blood, and the composition of types of hemoglobin is different from that of ordinary cattle. The early-period fetus' hemoglobin was found in the newborn's blood. The characterastics mentioned above have been discussed in the paper and some recommendations for yak. breeding and man- agement have also been given. |
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