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능성어 (Epinephelus septemfasciatus) 치어의 생존율과 혈액학적 특성 변화에 미치는 암모니아 노출의 영향
Effects of Ammonia Exposure on Survival Rate and Hematological Characteristics Changes in Juveniles of Sevenband Grouper, Epinephelus septemfasciatus 원문보기

Korean journal of Ichthyology = 한국어류학회지, v.29 no.1, 2017년, pp.13 - 21  

김정현 (국립수산과학원 양식관리과) ,  박종연 (국립수산과학원 양식관리과) ,  이정용 (국립수산과학원 양식관리과) ,  이진환 (국립수산과학원 양식관리과) ,  황형규 (국립수산과학원 양식관리과) ,  조재권 (국립수산과학원 양식관리과)

초록
AI-Helper 아이콘AI-Helper

본 연구는 능성어(Epinephelus septemfasciatus)를 해수 순환여과양식시스템(RAS)에 적용하는데 문제가 되는 암모니아의 농도 기준을 제시하기 위하여 96시간 동안 암모니아 노출에 따른 생존율 및 혈액학적 특성 변화를 조사하였다. 생존율 실험구의 암모니아 농도는 대조구, 0.35, 0.4, 0.5, 0.8 mg/L였으며, 96-h $LC_{50}$ 농도는 0.6 mg/L로 나타났다. 능성어 치어의 암모니아 96-h $LC_{50}$ 농도인 0.6 mg/L에서 0, 3, 6, 12, 24, 48, 72, 96시간 간격으로 12마리씩 혈액 샘플링을 하였다. 실험구의 암모니아 노출 시간이 경과할수록 혈장 코티졸, 글루코스, GOTGPT 농도가 증가하는 경향을 보였다. 혈장 암모니아와 총 단백질은 암모니아 노출 12시간째까지는 증가하였고 이후로는 감소하였지만, 대조구와 비교하여 유의하게 높은 값을 나타내었다. 또한 혈장 전해질이온($Na^+$, $Cl^-$)과 삼투압은 감소하는 경향이 관찰되었다.

Abstract AI-Helper 아이콘AI-Helper

We investigated that changes of survival rate and hematological factors in sevenband grouper (Epinephelus septemfasciatus), exposed to ammonia. First, the fish was exposed and was observed survival rate. We observed the survival rate of the fish when exposed at each ammonia concentrations (0, 0.35, ...

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문제 정의

  • 본 연구는 능성어(Epinephelus septemfasciatus)를 해수 순환여과양식시스템(RAS)에 적용하는데 문제가 되는 암모니아의 농도 기준을 제시하기 위하여 96시간 동안 암모니아 노출에 따른 생존율 및 혈액학적 특성 변화를 조사하였다. 생존율 실험구의 암모니아 농도는 대조구, 0.
  • 본 연구는 능성어를 대상으로 순환여과양식시스템에 적용하는데 문제가 되는 암모니아 농도 기준을 제시하고자 96시간 동안 암모니아 노출에 따른 능성어 치어의 생존율 및 혈액학적 특성 변화를 조사하였다.
본문요약 정보가 도움이 되었나요?

질의응답

핵심어 질문 논문에서 추출한 답변
순환여과양식시스템의 장점은? , 2004). 순환여과양식시스템은 다양한 수처리 시설을 이용하여 물을 지속적으로 재사용할 수 있어 에너지를 효율적으로 사용할 수 있으며 (Suh et al., 2001), 겨울철에도 수온을 유지시키거나 성장을 지속시킬 수 있는 시스템으로서 연중 안정적으로 어류의 사육에 적합한 시스템이다 (Kim, 2011). 하지만 해산어류 양식의 순환여과양식시스템은 사육수 내 수질환경에 영향을 미치는 총 암모니아성 질소 같은 대사산물을 효과적으로 제거해야 하는 것이 문제점으로 남아있다 (Park et al.
순환여과양식시스템의 한계점은? , 2001), 겨울철에도 수온을 유지시키거나 성장을 지속시킬 수 있는 시스템으로서 연중 안정적으로 어류의 사육에 적합한 시스템이다 (Kim, 2011). 하지만 해산어류 양식의 순환여과양식시스템은 사육수 내 수질환경에 영향을 미치는 총 암모니아성 질소 같은 대사산물을 효과적으로 제거해야 하는 것이 문제점으로 남아있다 (Park et al., 2014).
암모니아 독성이 어류의 생존에 미치는 영향은? , 2004; Park, 2005). 사육수 내 암모니아 농도가 높을 경우 어류의 체내에 축적되어 독성을 일으키게 되고 (Randall and Wright, 1987; Paust et al., 2011), 혈장 암모니아 농도와 암모니아 함량을 증가시켜 스트레스 증가와 폐사가 발생한다 (Wilson and Taylor, 1992; Paley et al., 1993).
질의응답 정보가 도움이 되었나요?

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AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

AI-Helper 아이콘
AI-Helper
안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

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