지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 95 - 101 (7page)
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초록· 키워드
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The present study was conducted to test a hypothesis that pork quality traits would be influenced by the systemic and/or local bioavailability of insulin-like growth factor-I(IGF-I), transforming growth factor-β1(TGF-β1), or epidermal growth factor(EGF) before or at slaughter. To this end, 60 cross-bred female market pigs weighing approximately 110kg were slaughtered, after which Longissimus dorsi muscle(LM) samples taken at slaughter(D 0) and blood samples taken at D -7 and D 0 were analyzed. The 60 carcasses rendered 36 RFN(reddish-pink, firm, and non-exudative), 16 RSE(reddish-pink, soft, and exudative), and 6 PSE (pale, soft, and exudative); 2 DFD(dark, firm, and dry) also were found but were excluded in subsequent experiments. The L* and drip loss were greater in PSE vs. RFN and RSE and in PSE and RSE vs. RFN, respectively, as they should (P<0.05). The pH45min was less in PSE vs. RFN(P<0.05); pH24h tended to be less in the former(P=0.09). The LM IGF-I and TGF-β1 as well as serum EGF concentrations were less in PSE than in RFN. None of the other LM and serum concentrations of the three growth factors differed across the three pork quality categories. The LM IGF-I and TGF-β1 concentrations and serum EGF concentration at D 0 were negatively correlated with drip loss[r=-0.36(P<0.01), －0.44(P<0.01), and －0.32(P<0.05), respectively]. However, none of the serum and LM growth factor variables was correlated with L* or a* (redness) of LM. Taken together, results suggest that locally expressed IGF-I and TGF-β1 and blood-borne EGF may have a beneficial effect on postmortem water holding capacity of the muscle and that pork quality traits could be predicted to some extent from concentrations of IGF-I and TGF-β1 in muscle and EGF in serum at slaughter.
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등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
Blachowski, S. / 1993 / Comparison of metabolic effects of EGF, TGF-α, TGF-β1 in primary culture of fetal bovine myoblasts and rat L6 myoblasts / Int. J. Biochem 25 : 1571
Blair, H. T. / 1989 / Responses to divergent selection for plasma concentrations of insulin-like growth factor-I in mice / Genet. Res 53 : 187 ~ 191
Blum, W. F. / 1993 / Serum levels of insulin-like growth factor I(IGF-I) and IGF binding protein 3 reflect spontaneous growth hormone secretion / J. Clin. Endocrinol. Metab 7
Burr, J. G. / 1980 / Association of the src gene product of Rous sarcoma virus with cytoskeletal structure of chicken embryo fibroblasts / Proc. Natl. Acad. Sci. USA 77 : 3484 ~ 34
CIE. / 1978 / Recommendations on uniform color spaces-color difference equations, psychometric color terms
Blair, H. T. / 1989 / Responses to divergent selection for plasma concentrations of insulin-like growth factor-I in mice / Genet. Res 53 : 187 ~ 191
Blum, W. F. / 1993 / Serum levels of insulin-like growth factor I(IGF-I) and IGF binding protein 3 reflect spontaneous growth hormone secretion / J. Clin. Endocrinol. Metab 7
Burr, J. G. / 1980 / Association of the src gene product of Rous sarcoma virus with cytoskeletal structure of chicken embryo fibroblasts / Proc. Natl. Acad. Sci. USA 77 : 3484 ~ 34
CIE. / 1978 / Recommendations on uniform color spaces-color difference equations, psychometric color terms
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