| 新疆细毛羊对不同草原类型的适应性研究 |
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| 引用本文： | 赵有璋,汪玺,黄照明.新疆细毛羊对不同草原类型的适应性研究[J].甘肃农业大学学报,1985(3). |
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| 作者姓名： | 赵有璋 汪玺 黄照明 |
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| 作者单位： | 甘肃农业大学,甘肃农业大学,云南省种羊场 |
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| 摘 要： | 本文通过新疆细毛羊对四种草原类型适应性的研究指出:新疆细毛羊羊毛的主要物理指标(细度、长度和强伸度)对寒温潮湿、暖热潮湿、亚热湿润和炎热湿润草原类型有良好反应,其生态价高;体重和剪毛量对寒温潮湿和暖热潮湿草原类型反应良好,对亚热湿润和炎热湿润草原类型反映敏感,其生态幅度较窄;繁殖成活率对炎热湿润和暖热潮湿草原类型有良好的反应。新疆细毛羊的生态地理区域初步划分为:最适区,以新疆巩乃斯种羊场的草原类型为代表;适应区,有暖热潮湿和寒温潮湿草原类型;勉强区,有炎热湿润和亚热湿润草原类型。通过研究,作者运用“总适应能力”来作为衡量新疆细毛羊在被引入的草原类型上风土驯化的客观数量化指标,文中对总适应能力的含义,计算公式,评定项目和评定方法都作了详尽的介绍和说明,并对被研究的四种草原类型七个场的新疆细毛羊的风土驯化程度做了定量的评价。
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A Study on the Adaptability of Xinjiang Fine Wool Sheep to Various Grassl and Classes |
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| Abstract: | The study on adaptabitity of Xinjiang fine wool sheep to the four grassland classes has indicated that the chief physical indices of the wool such as fineness, length and strength-stretched length are quite well adaptecl to the cold- damp, hot-damp, subtrropic-humid and tropic-humid grassland classes, and their ecological value is guite nigh the live-weight and the fleece weight have shown good respon-se to the cold-damp and hot-damp grassland classes, but they are sensitive to the subtropic-humid and tropic-humid grassland classes, and their ecological range is narrow; the rates of sheep's reproduction and surve on the tropical-humid and hot-damp grassland classes are high. The ecogeographical region of Xinjiang fine woop sheep can be tent(?)ttively divided into three types: the most suitable areas (the grassland of Xinjiang Gongnaisi Sheep Farm caw be regarded as the representive of this type ), the suitable areas (hot- damp anp and cold-humid grnssland classes) and less suitable areas (tropical-humid and subtropical-humid grassland classes). The authors used the "Total-adaptability" as an objective quantitative index which evaluates the acclimatization degrees of Xinjiang fine wool sheep on the grassland classes where the sheep have beer introduced. The conception of the total-adapta-bility, the calculating formula, the evalulating items and methods have been introduced and explained in detail, and the acclimattizaion degrees of Xinjiang fine wool sheep have been evaluated quantitatively on the four grassland classes, distributing over seven sheep farms. |
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