養殖イサキの死後変化に及ぼす刺殺条件と保存温度の影響  [in Japanese] Influence of killing procedures and storage temperatures on post-mortem changes in the muscle of cultured three-line grunt Parapristipoma trilineatum  [in Japanese]

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Abstract

養殖イサキの死後変化に及ぼす致死条件(延髄刺殺,苦悶死,温度ショック,脊髄破壊)と保存温度(氷蔵,5, 10, 15, 20℃)の影響を検討した。致死条件実験では ATP 量,IMP 量,K 値,硬直指数の経時変化は脊髄破壊が最も遅かった。夏期(飼育水温 25℃)と冬期(15℃)のイサキを用いた保存温度実験における死後変化は冬期群が夏期群に比較して遅く,10℃ 保存で K 値,硬直指数の上昇が最も遅延した。養殖イサキの死後変化の遅延は飼育水温に関らず,保存 24 時間以内で脊髄破壊後 10℃ 保存が最適であった。<br>

  In order to evaluate the effect of different killing methods (instant, struggled, temperature shock and spinal cord destruction) and storage temperatures (iced, 5, 10, 15, 20°C) on postmortem changes in the muscle of the cultured three-line grunt, the adenosine triphosphate (ATP), inosine monophosphate (IMP) concentrations, K-value and rigor index were investigated. A primary study on killing procedures showed that the spinal cord destruction method was the best, since the ATP concentrations resulted in a slow decrease and IMP concentrations, K values and rigor index showed slow increases respectively. For the storage temperature study, two fish groups with different culture temperatures, winter and summer, were used. When the changes in ATP, IMP, K-values and rigor index were compared, fish cultured at winter temperatures had relatively slower variations than those cultured at summer temperatures. Regarding the storage temperature tests, the 10°C storage resulted in slower increases in K-values and rigor index. From these results, it can be concluded that the spinal cord destruction method and storage at 10°C, regardless of culture temperature, were the most effective in delaying post-mortem changes of the three-line grunt even 24 h after postmortem.<br>

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 72(5), 918-923, 2006-09-15

    The Japanese Society of Fisheries Science

References:  22

Cited by:  6

Codes

  • NII Article ID (NAID)
    110004833796
  • NII NACSIS-CAT ID (NCID)
    AN00193422
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    00215392
  • NDL Article ID
    8528252
  • NDL Source Classification
    ZR26(科学技術--農林水産--水産)
  • NDL Call No.
    Z18-345
  • Data Source
    CJP  CJPref  NDL  NII-ELS  IR  J-STAGE 
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