| 肉牛剩余采食量的概念和实践应用 |
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| 引用本文： | 石风华,周振明,任丽萍,孟庆翔.肉牛剩余采食量的概念和实践应用[J].饲料工业,2010(Z2). |
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| 作者姓名： | 石风华 周振明 任丽萍 孟庆翔 |
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| 作者单位： | 中国农业大学动物科技学院肉牛研究中心,动物营养学国家重点实验室,100193,北京 |
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| 基金项目： | 国家现代肉牛产业技术体系，国家重点实验室基金 |
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| 摘 要： | 剩余采食量(RFI)是实际采食量与预测采食量的差值,是衡量肉牛饲料效率的新指标。文章简要介绍了RFI的概念、测定方法、应用RFI的益处,以及影响肉牛RFI的一些生理因素,包括采食量、消化率、体组织代谢、活动量、体温调节等。最后,文章讨论了RFI在肉牛生产实践中的应用。
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| 关 键 词： | 剩余采食量 饲料效率 肉牛 |
Residual feed intake of beef cattle:the concept and it's application |
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| Shi Fenghua,Zhou Zhenming,Ren Liping,Meng Qingxiang.Residual feed intake of beef cattle:the concept and it's application[J].Feed Industry,2010(Z2). |
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| Authors: | Shi Fenghua Zhou Zhenming Ren Liping Meng Qingxiang |
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| Abstract: | Residual feed intake (RFI) is a difference between actual intake and expected intake as a new measurement of feed efficiency in beef cattle. In the present article, more advanced information was summaries regarding the concept of RFI, its testing measures, benefits from its selection, and certain physiological factors including feed intake, digestibility, body composition metabolism, physical activity and thermoregulation. Finally, some issues of RFI application in the beef cattle production were briefly discussed. |
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| Keywords: | residual feed intake feed efficiency beef cattle |
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