バッチ式海水電解装置の魚類病原細菌およびウイルスに対する殺菌効果

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タイトル別名
  • Disinfectant Effects of Hypochlorite Produced by Batch Electrolytic System on Fish Pathogenic Bacteria and Virus.
  • バッチシキ カイスイ デンカイ ソウチ ノ ギョルイ ビョウゲン サイキン オヨビ ウイルス ニ タイスル サッキン コウカ

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抄録

The bactericidal and virucidal effects of hypochlorite produced by batch electrolytic system were examined for fish pathogens. Sodium chloride solutions, ranging from 0.5 to 3%, were electrolyzed and the concentration of chlorine produced was measured. Almost same concentration of chlorine was produced when 1.0% or more NaCI solution and seawater were electrolyzed. Fish pathogenic bacteria or virus was added to electrolyzed water and exposed to hypochlorite. More than 99% cells of Vibrio anguillarum, causative agent of fish vibriosis, were killed when the bacteria were exposed to 0.21mg/l hypochlorite for 1min. Yellowtail ascites virus (YAV) and hirame rhabdovirus (HIRRV), the causative agents of viral ascites disease and rhabdovirus disease of marine fish, were inactivated more than 99% after treatment with 0.42 mg/l hypochlorite for 1 min. The number of viable bacteria in the hatchery supply-seawater was reduced more than 99% when the water was treated with hypochlorite of 0.54 mg/l for 1 min. And more than 99% cells of viable bacteria in the waste-seawater were killed when the water was treated with hypochlorite of 0.64 mg/l for 5min. The batch system developed in this study revealed remarkable bactericidal and virucidal effects, which were very similar to those in continuous flow-water system.

収録刊行物

  • 水産増殖

    水産増殖 49 (2), 237-241, 2001

    日本水産増殖学会

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