| 牛的肉用指数及影响因素 |
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| 引用本文： | 张英汉.牛的肉用指数及影响因素[J].中国牛业科学,2006,33(2):4-7. |
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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,动物科技学院,陕西,杨凌,712100 |
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| 摘 要： | 牛的肉用指数(活重kg/体高cm,BP I)是一区分役用型牛与肉用型牛的易测指标,将役牛转化为肉用型牛,其成年公牛BP I应达5.6以上,成年母牛平均达到4以上,这即是“由役转肉”转化成功的“转折点”。黄牛品种内存在BP I类型的多样性,这为选优转化提供了依据。影响牛的BP I因素包括品种(类型)、饲养条件、年龄和性别等。根据实际情况本文提出了公母牛(黄牛)BP I的年龄校正系数,按BP I选牛,可以提早到1~2岁。
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| 关 键 词： | 黄牛 BPI(重高比) 影响因素 |
| 文章编号： | 1001-9111（2006）02-0004-04 |
| 收稿时间： | 2005-10-27 |
| 修稿时间： | 2005年10月27 |
Beef Performance Index for Cattle and Its Affecting Factors |
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| ZHANG Ying-han.Beef Performance Index for Cattle and Its Affecting Factors[J].China Cattle Science,2006,33(2):4-7. |
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| Authors: | ZHANG Ying-han |
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| Abstract: | Beef performance index(BPI) for cattle(Weight(kg)/Height(cm) Ratio) is an easy examining measure.In order to improve the draft-type cattle breed into the beef-type breed,the beef performance index(BPI) should be over 5.6 kg/cm for mature bulls and 4.0 kg/cm for mature cows.Within the Chinese yellow cattle breeds(populations),there is a diversity of BPI-types.The factors affecting the BPI include breed(biological type),feeding and management, sex and age etc. |
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| Keywords: | Yellow cattle Beef performance index(BPI) Factors |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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