| 论牛的肉用、役用经济类型划分的意义和方法(BPI指数) |
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| 引用本文： | 张英汉. 论牛的肉用、役用经济类型划分的意义和方法(BPI指数)[J]. 中国牛业科学, 2001, 27(2): 1-5 |
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| 作者姓名： | 张英汉 |
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| 作者单位： | 西北农林科技大学畜牧兽医学院动物科学系黄牛研究室 |
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| 基金项目： | 陕西省农业厅"秦川肉牛选育"和省农发办项目资助。 |
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| 摘 要： | 关于以一个量值指标来划分现今典型的肉用型牛和役用型牛品种，还未见有报导，本文提出肉用指数（Beef purpose index，简写BPI），即平均成年活重与体高的比值，作为划分肉用牛与役用牛（品种）的量值指标，经对国内外74个肉牛和役牛品种（类型）资料计算，平均BPI值，公牛：4．56kg/cm，母牛3．32kg/cm，以此作为划分役牛，肉牛的基本界限，与传统抽象描述法划分结果吻合良好，符合比率由92．6％，（国外肉用品种公牛平均值）到97．9％（国内黄牛品种母牛平均值）。
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| 关 键 词： | 牛 肉用型 役用型 BPI指数 肉用指数 经济类型 划分 |
| 文章编号： | 1001-9111(2001)02-0001-05 |
| 修稿时间： | 2000-11-20 |
On Significance and Methods Differentiating Beef-type from Draft-type Cattle |
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| ZHANG Ying-hang. On Significance and Methods Differentiating Beef-type from Draft-type Cattle[J]. China Cattle Science, 2001, 27(2): 1-5 |
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| Authors: | ZHANG Ying-hang |
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| Abstract: | It has not been reported on a quantity index for differentiating the present typical beef from draft cattle by now. Beef Purpose Index (BPI, ratio of adult body weight to body height) is put forward to be a quantity index for differentiating the present typical beef from draft cattle breeds. On the statistic data of 74 domestic and abroad cattle breeds, the average BPI is 4.56 kg/cm for bulls and 3.32 kg/cm for cows, respectively, As the basic limit, which is conformed to the results from traditional methods by 92.9%(abroad beef bulls)-97.9%(domestic yellow cattle cow) |
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| Keywords: | Cattle Beef type Draft type BPI |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
