Individual average daily feed intake (ADFI), age at 120 kg (AGE), backfat (FAT), loin muscle depth (LMD), and group feed intake (sumFI) were used to investigate estimated breeding values (EBV) for feed intake (FI) using individual versus group FI data, along with individual data on AGE, FAT, and LMD, which had moderate to high genetic correlations with ADFI. The correlation of FI EBV using only ADFI versus sumFI was <0.25, which increased to 0.78-0.93 when adding data of the correlated traits in 4-trait models. The correlation between FI EBV from the 4-trait model with/without sumFI data was 0.99. The correlation between EBV from the 4-trait model with/without ADFI ranged from 0.79-0.94. Thus, group FI has negligible value when using correlated traits in pedigree-based analyses, while individual ADFI provides benefit, especially for young selection candidates.
Proceedings of 12th World Congress on Genetics Applied to Livestock Production (WCGALP)
Technical and species orientated innovations in animal breeding, and contribution of genetics to solving societal challenges
EditorsR.F. Veerkamp and Y. de Haas
Published: 2022 Pages: 3364
eISBN: 978-90-8686-940-4
Book Type: Conference Proceedings
50. Prediction of breeding values for feed intake in pigs using individual versus group records along with correlated traits
C. Zhang Related information, R.A. Kemp Related information
1Genesus Inc., Oakville, MB R0H 0Y0, Canada.
, J.C.M. Dekkers Related information2Department of Animal Science, Iowa State University, Ames, IA 50011, USA.
, G.S. Plastow Related information3Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB T6G 2R3, Canada.
, H. Gao Related information4Natural Resources Institute Finland (Luke), Myllytie 1, 31600 Jokioinen, Finland.
Published Online: February 09, 2023
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