Effects of Supplemental Asterias amurensis Extract in the Experimental Diets on Growth, Blood Chemistry and Superoxide Production of Kidney Phagocytes of Sebastes schlegeli

불가사리(Asterias amurensis) 추출물을 첨가한 사료의 급이가 조피볼락(Sebastes schlegeli)의 성장, 혈액성상 및 식세포 활성산소 생산에 미치는 효과

  • Park, Hee-Yeon (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Lim, Chi-Won (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Kim, Yeon-Kye (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Choi, Tae-Jin (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Yoon, Ho-Dong (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Lee, Ka-Jung (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Seo, Yeon-Kyung (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Kim, Ji-Yeong (Biotechnology Research Center, National Fisheries Research & Development Institute) ;
  • Park, Ki-Eui (Biotechnology Research Center, National Fisheries Research & Development Institute)
  • 박희연 (국립수산과학원 생명공학연구소) ;
  • 임치원 (국립수산과학원 생명공학연구소) ;
  • 김연계 (국립수산과학원 생명공학연구소) ;
  • 최태진 (국립수산과학원 생명공학연구소) ;
  • 윤호동 (국립수산과학원 생명공학연구소) ;
  • 이가정 (국립수산과학원 생명공학연구소) ;
  • 서연경 (국립수산과학원 생명공학연구소) ;
  • 김지영 (국립수산과학원 생명공학연구소) ;
  • 박기의 (국립수산과학원 생명공학연구소)
  • Published : 2007.12.31

Abstract

This study was conducted to examine the effects of Asterias amurensis prethanol extract on growth performance, serum traits, and superoxide production of phagocytes in Sebastes schlegeli. The effects of Asterias amurensis extract on growth performance, specific growth rate (SGR), feed concentration ratio (FCR), coefficient of fatness (CF), and survival rate (SR) of fish fed diets containing various concentrations of Asterias amurensis extract were measured. There were no significant differences in SGR, FCR, CF, and SR among the experimental groups. This result was produced because experimental diets were coated to prevent repellent action of fish. To investigate the effects of Asterias amurensis extract on the metabolism, the contents of glucose, glutamic oxaloacetic transaminase (GOT), and total cholesterol in serum were measured. The contents of glucose and total cholesterol in serum increased dose-dependently and serum GOT content showed no significant difference among the experimental groups, suggesting that Asterias amurensis extract was non-toxic material. To confirm the effects of Asterias amurensis extract on the immune system of fish, superoxide production of phagocytes was measured. Asterias amurensis extract caused a dose-dependent increase of superoxide production of phagocytes. When considering these results, Asterias amurensis extract could be utilized as an additive to augment immune function in diets.

수산 해적생물인 불가사리의 주정추출물을 농도별로 사료에 첨가하여 조피볼락의 성장, 혈액성상 및 식세포 활성산소 생산에 미치는 효과를 조사하였다. 불가사리추출물의 함량이 다른 사료를 급여한 조피볼락의 1일성장율(SGR), 사료계수(FCR), 비만도(CF), 생존율(SR)을 비교한 결과, 실험군별 유의적인 차이를 보이지 않았다. 이는 불가사리추출물에 의한 먹이 기피현상을 방지하기 위해 사료를 코팅을 하였기 때문인 것으로 사료된다. 불가사리추출물이 조피볼락의 체내 대사계에 미치는 영향을 알아보기 위해 혈청 중의 glucose, total cholesterol의 함량과 GOT를 측정한 결과, glucose와 total cholesterol의 함량은 불가사리추출물의 함량이 증가할수록 높아지는 경향을 보였다. 한편, 혈청 GOT는 실험군별로 유의적인 차이를 보이지 않았으며 이는 불가사리추출물이 독성이 거의 없기 때문인 것으로 추정된다. 불가사리추출물 첨가사료의 급이가 조피볼락의 면역계에 미치는 영향을 알아보기 위하여 식세포의 활성산소 생산량을 측정한 결과, 불가사리추출물의 첨가에 따라 농도 의존적으로 증가하였다. 이상의 실험결과에서 불가사리추출물은 면역증강 기능성 사료첨가제로 활용할 수 있을 것으로 사료되었다.

Keywords

References

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