Relationships of concentrations of endocrine factors at antemortem and postmortem periods to carcass weight and backfat thickness in pigs

J. S. Yun, D. S. Seo, Min-Suk Rhee, S. Oh, Byoung-Chul Kim, Yong Ko

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2 Citations (Scopus)

Abstract

Carcass weight and backfat thickness are two of important elements in determining the carcass trait in pigs and are studied on animal genetics, nutrition, and endocrinology. Growth factors stimulate or inhibit the proliferation and differentiation of various cells. In particular, insulin-like growth factors (IGFs), transforming growth factor (TGF)-β, and epidermal growth factor (EGF) are involved in the growth and maintenance of muscle. Also, dehydroepiandrosterone-sulfate (DHEA-S) and cortisol are known to be related to the obesity and subcutaneous fat depth in pigs. Therefore, this study was performed to relate growth factors (IGFs, TGF-β1, and EGF) and hormones (cortisol and DHEA-S) concentrations at antemortem and postmortem periods to carcass traits including carcass weight and backfat thickness. Blood and m. Longissimus were collected in pigs at antemortem (30 days before slaughter) and postmortem periods. After slaughtered, carcass weight and backfat thickness were measured. Growth factors and hormones in serum and m. Longissimus were measured by radioimmunoassay or enzyme-linked imuunosorbent assay. Before antemortem period, serum IGF-I and -II concentrations were positively correlated with the carcass weight and backfat thickness in gilts, and the concentrations of TGF-β1 and cortisol in barrows show the correlation with only carcass weight. Also, the positive correlations of muscular IGFs and TGF-β1 at postmortem 45 min with the carcass weight and backfat thickness were detected. Consequently, these results suggest that the serum and muscular endocrine factors are involved in the carcass weight and backfat thickness in pigs.

Original languageEnglish
Pages (from-to)335-341
Number of pages7
JournalAsian-Australasian Journal of Animal Sciences
Volume16
Issue number3
Publication statusPublished - 2003 Mar 1

Fingerprint

backfat
carcass weight
Swine
transforming growth factors
Weights and Measures
Transforming Growth Factors
swine
somatomedins
Somatomedins
blood serum
growth factors
cortisol
prasterone
Intercellular Signaling Peptides and Proteins
Dehydroepiandrosterone Sulfate
epidermal growth factor
Epidermal Growth Factor
carcass characteristics
somatotropin
Hydrocortisone

Keywords

  • Backfat Thickness
  • Carcass Weight
  • Endocrine Factor
  • Growth Factor
  • Pigs

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

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title = "Relationships of concentrations of endocrine factors at antemortem and postmortem periods to carcass weight and backfat thickness in pigs",
abstract = "Carcass weight and backfat thickness are two of important elements in determining the carcass trait in pigs and are studied on animal genetics, nutrition, and endocrinology. Growth factors stimulate or inhibit the proliferation and differentiation of various cells. In particular, insulin-like growth factors (IGFs), transforming growth factor (TGF)-β, and epidermal growth factor (EGF) are involved in the growth and maintenance of muscle. Also, dehydroepiandrosterone-sulfate (DHEA-S) and cortisol are known to be related to the obesity and subcutaneous fat depth in pigs. Therefore, this study was performed to relate growth factors (IGFs, TGF-β1, and EGF) and hormones (cortisol and DHEA-S) concentrations at antemortem and postmortem periods to carcass traits including carcass weight and backfat thickness. Blood and m. Longissimus were collected in pigs at antemortem (30 days before slaughter) and postmortem periods. After slaughtered, carcass weight and backfat thickness were measured. Growth factors and hormones in serum and m. Longissimus were measured by radioimmunoassay or enzyme-linked imuunosorbent assay. Before antemortem period, serum IGF-I and -II concentrations were positively correlated with the carcass weight and backfat thickness in gilts, and the concentrations of TGF-β1 and cortisol in barrows show the correlation with only carcass weight. Also, the positive correlations of muscular IGFs and TGF-β1 at postmortem 45 min with the carcass weight and backfat thickness were detected. Consequently, these results suggest that the serum and muscular endocrine factors are involved in the carcass weight and backfat thickness in pigs.",
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AU - Yun, J. S.

AU - Seo, D. S.

AU - Rhee, Min-Suk

AU - Oh, S.

AU - Kim, Byoung-Chul

AU - Ko, Yong

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N2 - Carcass weight and backfat thickness are two of important elements in determining the carcass trait in pigs and are studied on animal genetics, nutrition, and endocrinology. Growth factors stimulate or inhibit the proliferation and differentiation of various cells. In particular, insulin-like growth factors (IGFs), transforming growth factor (TGF)-β, and epidermal growth factor (EGF) are involved in the growth and maintenance of muscle. Also, dehydroepiandrosterone-sulfate (DHEA-S) and cortisol are known to be related to the obesity and subcutaneous fat depth in pigs. Therefore, this study was performed to relate growth factors (IGFs, TGF-β1, and EGF) and hormones (cortisol and DHEA-S) concentrations at antemortem and postmortem periods to carcass traits including carcass weight and backfat thickness. Blood and m. Longissimus were collected in pigs at antemortem (30 days before slaughter) and postmortem periods. After slaughtered, carcass weight and backfat thickness were measured. Growth factors and hormones in serum and m. Longissimus were measured by radioimmunoassay or enzyme-linked imuunosorbent assay. Before antemortem period, serum IGF-I and -II concentrations were positively correlated with the carcass weight and backfat thickness in gilts, and the concentrations of TGF-β1 and cortisol in barrows show the correlation with only carcass weight. Also, the positive correlations of muscular IGFs and TGF-β1 at postmortem 45 min with the carcass weight and backfat thickness were detected. Consequently, these results suggest that the serum and muscular endocrine factors are involved in the carcass weight and backfat thickness in pigs.

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