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Influence of Genetic Background on Porcine Stress Syndrome Incidence and Pork Quality Attributes

품종이 Porcine Stress Syndrome 돼지 출현비율 및 육질에 미치는 영향

  • Kim, D.H. (National Livestock Research Institute) ;
  • Kim, T.H. (National Livestock Research Institute) ;
  • Lee, Y.C. (National Livestock Research Institute) ;
  • Lee, J.R. (Gyeongnam Province Advanced Swine Research Institute) ;
  • Choi, J.S . (National Livestock Research Institute) ;
  • Lee, M. (Department of Animal Science & Technology Seoul National University)
  • Published : 2003.10.31

Abstract

Landrace(L), Largewhite(Lw), Korean Native Pig(KNP) and commercial hybrid were experimented to determine holothane sensitivity, RYR gene mutation and quality profiles. In the results of halothane test, the incidence of halothane positive pigs was similar between L and Lw. But, the rate of dubious halothane positive type was higher in L than Lw. In hal-gene analysis, halothane-positive pigs(nn) were not found in any tested breed and heterotype(Nn) appeared only in one pig of L. Of the breed effect on the quality profiles, there were no differences in pH$_1$(pH at 1hr postslaughter), but pH$_{u}$(pH at 24hr postslaughter) was significantly higher in commercial hybrid and KNP than other breeds(p〈0.05). Color assessed by National Pork Producers Council(NPPC) and CIE L$^{*}$ was significantly paler in L breed than other breeds(p〈0.05). Significant differences were found in water holding capacity(WHC) and cooking loss in KNP(p〈0.05).

Keywords

PSS;Swine breed;Quality;PSE

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