剩余采食量效应：评价肉牛营养与饲养过程中饲料转化率的指标

摘要

Residual feed intake ( RFI) is a new measurement to assess feed conversation ratio of beef cattle. The article introduced briefly researches related to net feed intake of beef cattle from the following aspects:the definition of RFI, the physical basics affecting RFI, the relationships between RFI and methane emission, eco-nomic implications of RFI, hereditary capacity and genetic correlation of RFI and research advances on the rel-ative molecular markers of RFI.%剩余采食量效应( RFI)是评估肉牛饲料转化效率的一个新指标。本文从RFI的定义、影响RFI的生理基础、RFI与甲烷排放量的关系、RFI的经济效益、RFI的遗传力与遗传相关及RFI分子标记研究进展等方面对肉牛净进食效应的相关研究进行了综述。