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KMID : 0881720120270030290
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Journal of Food Hygiene and Safety
2012 Volume.27 No. 3 p.290 ~ p.294
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Bactericidal Efficacies of an Aquatic Disinfectant Tablet Composed to Calcium Hypochlorite Against Vibrio anguillarum and Streptococcus iniae
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Cha Chun-Nam
Lee Yeo-Eun
Kang In-Jin
Yoo Chang-Yeul
Choi Hyun-Ju
Kim Suk
Lee Hu-Jang
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Abstract
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Vibrio spp. and Streptococcus spp. have caused a considerable disease of farmed fish and economic loss in fish farming and seafood industry. In this study, the efficacy of an aquatic disinfectant tablet composed to calciumhypochlorite was evaluated against V. anguillarum and S. iniae. A bactericidal efficacy test by broth dilution method was used to determine the lowest effective dilution of the disinfectant following exposure to test bacteria for 30 min at 4oC. An aquatic disinfectant tablet and test bacteria were diluted with distilled water (DW), hard water (HW) or organic matter suspension (OM) according to treatment condition. V. anguillarum on the DW, HW and OM condition was completely inactivated with 16,000 15,000 and 13,000 fold dilutions of the disinfectant, respectively. On the DW, HW and OM condition, S. iniae was absolutely inactivated with 17,000 16,000 and 14,000 fold dilutions of the disinfectant, respectively. As an aquatic disinfectant tablet possesses bactericidal efficacy against fish pathogenic bacteria such as V. anguillarum and S. iniae this disinfectant solution can be used to control the spread of fish infective bacterial diseases.
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KEYWORD
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An aquatic disinfectant tablet, Vibrio anguillarum, Streptococcus iniae, Calcium hypochlorite, Disinfectant efficacy
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