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Willson HE, Rojas de Oliveira H, Schinckel AP, et al. Estimation of Genetic Parameters for Pork Quality, Novel Carcass, Primal-Cut and Growth Traits in Duroc Pigs. Animals (Basel). 2020;10(5)doi: 10.3390/ani10050779.
Willson, H. E., Rojas de Oliveira, H., Schinckel, A. P., Grossi, D., & Brito, L. F. (2020). Estimation of Genetic Parameters for Pork Quality, Novel Carcass, Primal-Cut and Growth Traits in Duroc Pigs. Animals : an open access journal from MDPI, 10(5), . https://doi.org/10.3390/ani10050779
Willson, Hannah E, et al. "Estimation of Genetic Parameters for Pork Quality, Novel Carcass, Primal-Cut and Growth Traits in Duroc Pigs." Animals : an open access journal from MDPI vol. 10,5 (2020). doi: https://doi.org/10.3390/ani10050779
Willson HE, Rojas de Oliveira H, Schinckel AP, Grossi D, Brito LF. Estimation of Genetic Parameters for Pork Quality, Novel Carcass, Primal-Cut and Growth Traits in Duroc Pigs. Animals (Basel). 2020 Apr 30;10(5). doi: 10.3390/ani10050779. PMID: 32365996; PMCID: PMC7278482.
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Animals (Basel). 2020 Apr 30;10(5). doi: 10.3390/ani10050779.

Estimation of Genetic Parameters for Pork Quality, Novel Carcass, Primal-Cut and Growth Traits in Duroc Pigs.

Animals : an open access journal from MDPI

Hannah E Willson, Hinayah Rojas de Oliveira, Allan P Schinckel, Daniela Grossi, Luiz F Brito

Affiliations

  1. Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
  2. Fast Genetics, Saskatoon, SK S7K 2K6, Canada.

PMID: 32365996 PMCID: PMC7278482 DOI: 10.3390/ani10050779

Abstract

More recently, swine breeding programs have aimed to include pork quality and novel carcass (e.g., specific primal cuts such as the Boston butt or belly that are not commonly used in selection indexes) and belly traits together with growth, feed efficiency and carcass leanness in the selection indexes of terminal-sire lines, in order to efficiently produce pork with improved quality at a low cost to consumers. In this context, the success of genetic selection for such traits relies on accurate estimates of heritabilities and genetic correlations between traits. The objective of this study was to estimate genetic parameters for 39 traits in Duroc pigs (three growth, eight conventional carcass (commonly measured production traits; e.g., backfat depth), 10 pork quality and 18 novel carcass traits). Phenotypic measurements were collected on 2583 purebred Duroc gilts, and the variance components were estimated using both univariate and bivariate models and REML procedures. Moderate to high heritability estimates were found for most traits, while genetic correlations tended to be low to moderate overall. Moderate to high genetic correlations were found between growth, primal-cuts and novel carcass traits, while low to moderate correlations were found between pork quality and growth and carcass traits. Some genetic antagonisms were observed, but they are of low to moderate magnitude. This indicates that genetic progress can be achieved for all traits when using an adequate selection index.

Keywords: belly trait; genetic correlation; heritability; meat quality; pork color; swine

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