Divergent Selection for Residual Feed Intake Impacts Carcass Composition of Pigs on High or Low Energy Diets
- Emily Arkfield (Iowa State University)
- Emily Hamman (Iowa State University)
- Jordy E. Berger (Iowa State University)
- Roger Johnson (Farmland Foods)
- Jennifer Young (Iowa State University)
- John F. Patience (Iowa State University)
- Jack C. M. Dekkers (Iowa State University)
- Nicholas K. Gabler (Iowa State University)
- Steven M. Lonergan (Iowa State University)
- Elisabeth J. Huff-Lonergan
(Iowa State University)
Abstract
Animals divergently selected for low and high residual feed intake (RFI) were fed either a high energy, low fiber (HELF) or low energy, high fiber (LEHF) diet. Regardless of line, pigs fed the LEHF diet had carcasses with reduced fat depth, loin depth, and greater percent lean. Line had no significant effect on carcass composition traits possibly due to line by sex interactions. Within the low RFI line, barrows had heavier carcasses with greater fat depth, while gilts had carcasses with a greater percent lean. Diet was the largest factor in final carcass composition of pigs in this study.
Keywords: Animal Science
How to Cite:
Arkfield, E., Hamman, E., Berger, J. E., Johnson, R., Young, J., Patience, J. F., Dekkers, J. C., Gabler, N. K., Lonergan, S. M. & Huff-Lonergan, E. J., (2014) “Divergent Selection for Residual Feed Intake Impacts Carcass Composition of Pigs on High or Low Energy Diets”, Iowa State University Animal Industry Report 11(1). doi: https://doi.org/10.31274/ans_air-180814-1190
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