Rhabdospora thelohani の疫学とコイの動脈球への移行

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  • MAYBERRY Lillian F.
    Biological Sciences Department, University of Texas at El Paso
  • BRISTOL John R.
    Biological Sciences Department, University of Texas at El Paso
  • SULIMANOVIC Djuro
    Department for Biology and Pathology of Fish and Bees, Veterinary Faculty, University of Zagreb
  • FIJAN Nikola
    Department for Biology and Pathology of Fish and Bees, Veterinary Faculty, University of Zagreb
  • PETRINEC Zdravko
    Department for Biology and Pathology of Fish and Bees, Veterinary Faculty, University of Zagreb

書誌事項

タイトル別名
  • Rhabdospora thelohani: Epidemiology of and migration into Cyprinus carpio bulbus arteriosus.
  • Rhabdospora thelohaniの疫学とコイの動脈球への移行〔英文〕
  • Rhabdospora thelohani ノ エキガク ト コイ ノ ドウミ

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抄録

Results of a survey of Cyprinus carpio, carp, in Croatia, Yugoslavia and data from carp reared under controlled laboratory conditions, have provided new information on the enigmatic nature of Rhabdospora thelohani or “rodlet cells”. Carp larvae were obtained in the laboratory by artificial fertilization and reared so as never to be in contact with other fish. Young fish were sacrificed at 10 and 60 days of age, serially sectioned and examined for R. thelohani. In 10 day larvae, organisms were never observed. However, 60 day fry had rhabdosporans loosely associated with the afferent branchial arteries and ventral aorta distal to the bulbus arteriosus. More proximally, they appeared to aggregate at the periphery of the aorta, become associated with the endothelium while decreasing in number at the periphery and finally localized primarily inside of the bulb. Results of the survey showed one out of a total of five (20 %) 11 mm carp contained R. thelohani; the organisms were found associated with the adventitia of the ventral aorta but not the bulbar tissue per se. The bulbi of all carp >30mm in length, from all four fish farms sampled, contained varying numbers of rhabdosporans. These observations suggest a migration of rodlet cells to the bulb and suggest but do not conclusively prove that they are not parasites.

収録刊行物

  • 魚病研究

    魚病研究 21 (3), 145-150, 1986

    日本魚病学会

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