Cytophaga psychrophila 感染卵に対するヨード剤消毒の無効性

DOI Web Site 被引用文献11件 参考文献8件
  • 熊谷 明
    Fisheries Development Division of Miyagi Prefectural Government
  • 高橋 清孝
    Miyagi Prefecture Fisheries Research And Development Center
  • 山岡 茂人
    Miyagi Prefectural Freshwater Fisheries Experimental Station
  • 若林 久嗣
    Department of Aquatic Bioscience, Graduate School of Agriculutural and Life Sciences, the University of Tokyo

書誌事項

タイトル別名
  • Ineffectiveness of Iodophore Treatment in Disinfecting Salmonid Eggs Carrying Cytophaga psychrophila.
  • Ineffectiveness of iodophore treatment

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抄録

Eggs of coho salmon (Oncorhynchus kisutch), rainbow trout (O. mykiss), and masu salmon (O. masou) were artificially inseminated and subsequently immersed in a modified Ordal and Anacker's broth culture of Cytophaga psychrophila (107-108CFU/ml) for 30min. The bacterium was recovered from the eggs at the eyed stage with viable cell counts ranging from 105 to 107CFU/g. The fertilized eggs were disinfected with 50ppm povidoneiodine for 15min immediately after experimental infection. However, C. psychrophila was detected by a broth culture method from 60-80 percent of the surface-disinfected eggs. At the eyed stage, the eggs were disinfected again with povidone-iodine at concentrations of 50-1, 000ppm for 15-120min. C. psychrophila was isolated from all of them at densities of 104-107CFU/g. The uninfected control eggs were all negative for the bacterium. It is concluded that the povidone-iodine treatment is ineffective to eliminate C. psychrophila from salmonid eggs.

収録刊行物

  • 魚病研究

    魚病研究 33 (3), 123-128, 1998

    日本魚病学会

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