Genetic correlation between biopsied and post-mortem muscle fibre characteristics and meat quality traits in swine
- Authors
- Lee, Seung-Hoon; Kim, Sangwook; Kim, Jun-Mo
- Issue Date
- Apr-2022
- Publisher
- Elsevier Ltd
- Keywords
- Genetic correlation; Heritability; Muscle biopsy; Muscle fibre characteristics; Pig
- Citation
- Meat Science, v.186
- Journal Title
- Meat Science
- Volume
- 186
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/54933
- DOI
- 10.1016/j.meatsci.2022.108735
- ISSN
- 0309-1740
1873-4138
- Abstract
- Muscle fibre characteristics (MFCs) are related to lean meat production and meat quality. We newly estimated the heritability and genetic correlation of MFCs and meat quality in biopsied and post-mortem meat samples of 595 Jeju black pigs (JBPs). The cross-sectional area (CSA) (Type I: 0.76 and Type IIA: 0.89), % MF area (MFA) (Type I: 0.82), and % MF number (MFN) between the biopsied and post-mortem samples had high absolute genetic correlation coefficients. Moreover, the genetic correlation between the biopsied samples and drip loss (MFN of Type I: −0.77), lightness (CSA of Type I: 0.56), colour score (MFA of Type IIB: −0.79), and marbling score (CSA of Type IIB: 0.84 and MFA of Type IIA: −0.42) were moderate to high. Therefore, the MFCs of biopsied pre-mortem samples could predict the post-mortem MFCs and quality of the meat. Consequently, the biopsy method could be useful for the estimation of MFCs and meat quality in live JBPs. © 2022 Elsevier Ltd
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