한국어병학회지 (Journal of fish pathology)

  • 제22권3호
  • /
  • Pages.275-282
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  • 2009
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  • 1226-0819(pISSN)
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  • 2233-5412(eISSN)
한국어병학회 (The Korean Society of Fish Pathology)
권호 표지

Edwardsiella tarda 인위감염에 의한 넙치, Paralichthys olivaceus의 가계별 내성변이

Family variation in survival of olive flounder Paralichthys olivaceus after Edwardsiella tarda infection in challenge tests

  • 김현철 (국립수산과학원 육종연구센터) ;
  • 손새봄 (국립수산과학원 육종연구센터) ;
  • 정종근 (국립수산과학원 육종연구센터) ;
  • 이정호 (국립수산과학원 육종연구센터) ;
  • 최혜승 (양식환경연구소) ;
  • 노재구 (국립수산과학원 육종연구센터) ;
  • 박철지 (국립수산과학원 육종연구센터) ;
  • 민병화 (국립수산과학원 육종연구센터) ;
  • 김종현 (양식관리과) ;
  • 김경길 (생명공학과) ;
  • 명정인 (국립수산과학원 육종연구센터)
  • 발행 : 2009.12.01
⟨ 이전 논문 다음 논문 ⟩

초록

본 연구는 에드워드 내성 정도를 기준으로 선발된 넙치 친어를 이용하여 $4{\times}4$ 펙토리얼 교배를 통해 얻어진 16가계 넙치의 에드워드 인위 감염 결과를 이용하여 교배 그룹, 교배 암컷, 교배 수컷의 효과를 분석하였다. 내성 친어간의 교배에 의해 생산된 교배구(RR)의 내성 지수, 생존율, 생존 일수는 각각 17.98, 13.77%, 18.36일로 나타났으나, 민감 친어간의 교배에 의해 생산된 교배구(SS)는 각각 12.46, 2.71%, 12.40일로 나타났다. 이상의 결과에서, 에드워드 질병내성 형질에 대한 가계간, 개체간 내성 정도의차이가 존재하는 것을 확인하였고, 인위 감염 결과를 이용하여 질병 저항성에 대한 선발이 가능할 것으로 판단된다.

In this study, effect of mating group, mating dam and mating sire was analyzed using olive flounder Paralichthys olivaceus challenged with Edwardsiella tarda. A challenge test was conducted using 1,708 olive flounder fingerlings obtained through $4{\times}4$ factorial cross from parents selected based on resistant degree. Regarding the means of resistant index, survival rate and days of survival by each mating group, the group(RR) produced by mating among resistant parents were 17.98, 13.77%, and 18.36 days, respectively; the group(SS) produced by mating among susceptible parents were 12.46, 2.71%, and 12.40 days, respectively. This study gives an indication that challenge test results may be successfully used as selection criteria for disease resistance to E. tarda in olive flounder, P. olivaceus.

키워드

참고문헌

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