Article
Symposium review: Genetic relationships between different measures of feed efficiency and the implications for dairy cattle selection indexes.
Journal of dairy science - 1 Jun 2020
Tempelman R J, Lu Y
Abstract excerpt
A greater number of dairy economic selection indexes are incorporating a measure of feed efficiency (FE) as a key trait. Definitions of FE traits have ranged from dry matter intake (DMI) to residual feed intake (RFI), noting that RFI is effectively DMI adjusted for various energy sink traits such as body weight (BW) and milk energy (MilkE). Other definitions of FE fall between these 2 extremes such as feed saved...
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