Feed is the largest cost in pork production; therefore, improving feed efficiency can increase producer profitability. Furthermore improved feed efficiency can support industry competitiveness, decrease the demand on global feed resources, and complement environmental sustainability. Genetically, selective breeding for residual feed intake (RFI) shows promise in meeting these increased demands. However, it is important to balance the benefits of feed efficiency selection with the pig’s ability to cope with stress and its welfare. Therefore, this factsheet will discuss physiological and behavioral stress research on swine selected on the basis of RFI.
U.S. Pork Center of Excellence
Azarpajouh, Samaneh; Colpoys, Jessica; Dekkers, Jack; Gabler, Nicholas; Patience, John F.; and Johnson, Anna K., "How has selection for residual feed intake (RFI) affected the grow-finish pig’s ability to cope with stress?" (2016). Animal Science White Papers, Technical Reports, & Fact Sheets. 8.