Association of blood glucose, blood lactate, serum cortisol levels, muscle metabolites, muscle fiber type composition, and pork quality traits

J. H. Choe, B. C. Kim

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The objective of this study was to investigate the relationship of blood glucose levels with blood lactate, serum cortisol levels, postmortem muscle glycogen and lactate content, muscle fiber type composition, and pork quality traits. Compared to pigs with lower blood glucose levels, pigs with higher blood glucose levels showed higher blood lactate and serum cortisol levels at exsanguination, and they had lower residual glycogen and higher lactate content in the muscle at 45. min postmortem. In addition, pigs with higher blood glucose levels had higher type IIB and lower type I area composition and finally exhibited lower muscle pH, paler color, and excessive loss of fluid on surface. These results imply that measuring blood glucose levels at exsanguination can be useful to indicate early glycolytic rates during postmortem and thus may be of value in the identification of pork with undesirable quality traits.

Original languageEnglish
Pages (from-to)137-142
Number of pages6
JournalMeat Science
Volume97
Issue number2
DOIs
Publication statusPublished - 2014 Jun

Keywords

  • Blood glucose
  • Glycolytic rate
  • Muscle fiber type composition
  • Muscle metabolites
  • Pork quality

ASJC Scopus subject areas

  • Food Science

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