JOURNAL ARTICLE

Including Non-Additive Genetic Effects in Genomic Prediction and Estimation of Variance Components for Performance and Heat Stress Traits in Pigs.

  • Published In: Journal of Animal Science, 2023, v. 101. P. 345 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Oliveira, Leticia F.; Brito, Luiz F. F.; Johnson, Jay S.; Veroneze, Renata 3 of 3

Abstract

This article focuses on evaluating the inclusion of non-additive genetic effects—such as dominance and epistasis—in genomic prediction models and variance component estimation for performance and heat stress traits in pigs. Using datasets from a purebred pig line and a crossbred sow population, the study found that incorporating non-additive effects did not improve prediction accuracy of breeding values in purebreds but altered animal ranking and selection decisions. In the crossbred population, traits like panting score (PS) and hair density (HD) showed notable additive-by-additive epistatic variance, while most heat stress traits exhibited minimal non-additive genetic effects. The findings highlight the complex role of non-additive genetics in pig breeding and heat stress adaptation.

Additional Information

  • Source:Journal of Animal Science. 2023/11, Vol. 101, p345
  • Document Type:Article
  • Subject Area:Health and Medicine
  • Publication Date:2023
  • ISSN:0021-8812
  • DOI:10.1093/jas/skad281.410
  • Accession Number:173680867
  • Copyright Statement:Copyright of Journal of Animal Science is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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