Genetic parameters and trends for production traits and their relationship with litter traits in Landrace and Yorkshire pigs

Animal Science Journal = Nihon Chikusan Gakkaihō
B M LopezKangseok Seo


Genetic parameters and trends in the average daily gain (ADG), backfat thickness (BF), loin muscle area (LMA), lean percentage (LP), and age at 90 kg (D90) were estimated for populations of Landrace and Yorkshire pigs. Additionally, the correlations between these production traits and litter traits were estimated. Litter traits included total born (TB) and number born alive (NBA). The data used for this study were obtained from eight farms during 1999 to 2016. Analyses were carried out with a multivariate animal model to estimate genetic parameters for production traits while bivariate analyses were performed to estimate the correlations between production and litter traits. The heritability estimates were 0.52 and 0.43 for ADG; 0.54 and 0.45 for BF; 0.25 and 0.26 for LMA; 0.54 and 0.48 for LP; and 0.56 and 0.46 for D90 in the Landrace and Yorkshire breeds, respectively. The ADG and D90 showed low genetic correlation with BF and LP. The LMA had -0.40, -0.32, 0.49, and 0.39 genetic correlations with ADG, BF, LP, and D90, respectively. Genetic correlations between production and litter traits were generally low, except for the correlations between LMA and TB (-0.23) in Landrace and ADG and TB (-0.16), ADG and NBA (-0.18), D90 and...Continue Reading


Nov 13, 2004·Journal of Animal Science·B HolmO Vangen
Oct 1, 2009·Animal : an International Journal of Animal Bioscience·D N R G KapellR Roehe
Apr 1, 2013·Asian-Australasian Journal of Animal Sciences·Jae Gwan ChoiYun Ho Choy
Jun 25, 2015·Asian-Australasian Journal of Animal Sciences·M M CablingK S Seo
Mar 25, 2017·Asian-Australasian Journal of Animal Sciences·Bryan Irvine LopezKang Seok Seo

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Jul 4, 2020·Animal : an International Journal of Animal Bioscience·V DéruH Gilbert
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