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Effect of Sex on Estimates of Genetic Parameters for Daily Gain and Ultrasonic Backfat Thickness in Swine

  • Hicks, C. ;
  • Satoh, M. ;
  • Ishii, K. ;
  • Kuroki, S. ;
  • Fujiwara, T. ;
  • Furukawa, T.
  • Received : 1998.09.15
  • Accepted : 1998.11.03
  • Published : 1999.08.01

Abstract

Estimates were made of genetic parameters for average daily gain (ADG) and average backfat thickness (ABF), and of the effect of sex on estimates of variance-covariance components for average daily gain of boars (DGM) and gilts (DGF) and average bacfat thickness of boars (BFM) and gilts (BFF) by residual maximum likelihood (REML) under a bivariate animal model. Data included a total of 2233 records (757 for boars and 1476 for gilts) of the Large White breed born between 1981 and 1986 in Miyazaki and Iwate prefectures in Japan. Heritability estimates for ADG and ABF were 0.43 and 0.69, respectively, with a genetic correlation of -0.08. Heritability estimates for DGM and DGF were 0.54 and 0.46, respectively, with a genetic correlation of 0.79, including that the two traits are influenced by similar but not identical genes. Respective estimates for BFM and BFF were 0.71 and 0.72 with a genetic correlation of 0.95, indicating that identical genes influence backfat thickness in boars and gilts.

Keywords

Heritability;Genetic Correlation;Genotype;Sex;Pigs

Cited by

  1. SEX-SPECIFIC GENETIC VARIANCE AND THE EVOLUTION OF SEXUAL DIMORPHISM: A SYSTEMATIC REVIEW OF CROSS-SEX GENETIC CORRELATIONS vol.64, pp.1, 2010, https://doi.org/10.1111/j.1558-5646.2009.00793.x
  2. Genetic Parameters of Pre-adjusted Body Weight Growth and Ultrasound Measures of Body Tissue Development in Three Seedstock Pig Breed Populations in Korea vol.28, pp.12, 2015, https://doi.org/10.5713/ajas.14.0971
  3. Genetic correlations between male reproductive traits and growth traits in growth performance tested Duroc, Landrace and Yorkshire breed boars vol.88, pp.9, 2017, https://doi.org/10.1111/asj.12776
  4. Fermentation vol.1025, pp.1742-6596, 2018, https://doi.org/10.1088/1742-6596/1025/1/012070

Acknowledgement

Supported by : Science and Technology Agency(STA)