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Genetic Parameter Estimates for Productive Traits in Duroc Pigs  

Cho, Chung-Il (National Institute of Animal Science, RDA)
Choy, Yun-Ho (National Institute of Animal Science, RDA)
Choi, Jae-Kwan (National Institute of Animal Science, RDA)
Choi, Tae-Jeong (National Institute of Animal Science, RDA)
Lee, Seung-Su (National Institute of Animal Science, RDA)
Cho, Kwang-Hyun (National Institute of Animal Science, RDA)
Park, Byoung-Ho (National Institute of Animal Science, RDA)
Publication Information
Journal of agriculture & life science / v.46, no.5, 2012 , pp. 57-63 More about this Journal
Abstract
The purpose of this study was to estimate genetic parameters for productive traits in Duroc breed. In this study, 40,657 records for productive traits and the pedigree data of 47,974 families were collected from 41 farms registered at the Korean Animal Improvement Association (KAIA) from 2004 to 2011. The REMLf90 program was used to analyze a multiple traits animal model with fixed effects of sex, contemporary group, parity and age at the end of the test as covariate and random effects of animal and residual error. The heritabilities of days to 90 kg (D90KG), average daily gain (ADG), backfat thickness (BF) and eye muscle areas (EMA) were estimated to be 0.334, 0.340, 0.335, and 0.200, respectively. The genetic correlation coefficients were -0.992 between D90KG and ADG, -0.142 between ADG and BF, -0.361 between ADG and EMA, and -0.243 between BF and EMA. Conversely, positive genetic correlations for D90KG with BF and EMA were 0.13 and 0.36, respectively.
Keywords
Genetic parameter; Duroc; Productive traits; Genetic correlation; Heritability;
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