Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Daily Rhythms and Effect of Short-term Starvation on the of Health Parameters in Olive Flounder Paralichthys olivaceus

넙치(Pralichthys olivaceus)의 혈액건강지표의 활동일주기와 단기절식에 따른 생리적 반응

  • Noh, Gyeong Eon (Genetics and Breeding Research Center, National Institute of Fisheries Science) ;
  • Kim, Woo-Jin (Genetics and Breeding Research Center, National Institute of Fisheries Science) ;
  • Kim, Hyun Chul (Genetics and Breeding Research Center, National Institute of Fisheries Science) ;
  • Park, Choul-Ji (Genetics and Breeding Research Center, National Institute of Fisheries Science) ;
  • Park, Jong-Won (Genetics and Breeding Research Center, National Institute of Fisheries Science)
  • 노경언 (국립수산과학원 육종연구센터) ;
  • 김우진 (국립수산과학원 육종연구센터) ;
  • 김현철 (국립수산과학원 육종연구센터) ;
  • 박철지 (국립수산과학원 육종연구센터) ;
  • 박종원 (국립수산과학원 육종연구센터)
  • Received : 2016.11.29
  • Accepted : 2017.09.01
  • Published : 2017.10.31
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Abstract

This study was conducted to determine the circadian rhythm and the effect of starvation for the health assessment of olive flounder Paralichthys olivaceus, reared under 12:12 LD (light:dark) cycle and fed 1% of their body weight once a day. The blood collection was implemented from 10 fish every 3 hours for a day, and analyzed to serval health parameters of the experimental fish. Plasma cortisol, glucose and total protein concentration reflected diel rhythms with high level of photophase and low level of scotophse despites of glutamic oxalacetic transaminase (GOT) and glutamic pyruvate transaminase (GPT) showing no rhythmicity, while electrolyte (sodium, potassium and chloride ion) concentrations arrived at the peak 18 hour and then slowly down. In the experiment of starvation, the result showed that there were no significant differences of the health parameters between the starved group and the fed. In short, our findings described the existence of circadian cortisol with glucose in flat fish, and indicated that the starvation does not almost affect the health of fish.

Keywords

References

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