Expression of serum and muscle endocrine factors at antemortem and postmortem periods and their relationship with pig carcass grade

W. K. Kim, M. H. Kim, Y. H. Ryu, Y. C. Ryu, Min-Suk Rhee, D. S. Seo, C. Y. Lee, Byoung-Chul Kim, Yong Ko

Research output: Contribution to journalArticle

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Abstract

Carcass weight and backfat thickness are primary yield grading factors. Insulin-like growth factor (IGF)-I/-II, transforming growth factor β1 (TGF-β1), and epidermal growth factor (EGF) regulate the proliferation and differentiation of cells including adipocytes. Also, interleukin (IL)-2/-6, cortisol, and dehydroepiandrosterone-sulfate (DHEA-S) are known to be related to muscle growth and fat depth. However, the relationships between endocrine factors and carcass grade have not been studied. Therefore, this study aimed to measure the concentrations of endocrine factors in serum and muscle, and to investigate the relationship of endocrine factors with carcass grade. A total of 60 crossbred gilts (DurocxYorkshirexLandrace) were used. Blood from the jugular vein was collected at antemortem (7 days before slaughter) and postmortem periods, and M. Longissimus was collected at 45 min and 24 h after slaughter. The concentrations of IGF-I/-II, EGF, TGF-β1, IL-2/-6, cortisol and DHEA-S were analyzed by radioimmunoassay (RIA) or enzyme-linked immunosorbent assay (ELISA). In general, IGF and EGF concentrations in serum and muscle of grade A carcasses were found to be higher than those of grade C carcasses at antemortem and postmortem periods, whereas the pattern of TGF-β1 concentration was reversed. In particular, the concentrations of muscle IGF-I (24 h postmortem) and serum TGF-β1 (antemortem) were significantly different between grades A and C (p<0.05). The present results indicate that serum and muscle growth factors affect carcass weight and backfat thickness, and indirectly suggest the possibility that carcass grade could be predicted by expression of serum and/or muscle growth factors.

Original languageEnglish
Pages (from-to)716-722
Number of pages7
JournalAsian-Australasian Journal of Animal Sciences
Volume18
Issue number5
Publication statusPublished - 2005 May 1

Fingerprint

pig carcasses
blood serum
transforming growth factors
Swine
Transforming Growth Factors
Muscles
muscles
epidermal growth factor
insulin-like growth factor I
Serum
Insulin-Like Growth Factor I
Epidermal Growth Factor
prasterone
Dehydroepiandrosterone Sulfate
Insulin-Like Growth Factor II
backfat
interleukin-2
carcass weight
growth factors
Interleukin-2

Keywords

  • Carcass Grade
  • Endocrine Factor
  • Growth Factor
  • Pig

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Expression of serum and muscle endocrine factors at antemortem and postmortem periods and their relationship with pig carcass grade. / Kim, W. K.; Kim, M. H.; Ryu, Y. H.; Ryu, Y. C.; Rhee, Min-Suk; Seo, D. S.; Lee, C. Y.; Kim, Byoung-Chul; Ko, Yong.

In: Asian-Australasian Journal of Animal Sciences, Vol. 18, No. 5, 01.05.2005, p. 716-722.

Research output: Contribution to journalArticle

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