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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
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Your Position :Home->Past Journals Catalog->2013 Vol.32 No.6

In vitro Inhibitory Effect of 7 Disinfectants on 4 Sturgeon-pathogenic Bacteria
Author of the article:YANG Yibin1, XIA Yongtao2,3, CHEN Xin4, QIU Junqiang1, CAO Haipeng1, HU Kun1, YANG Xianle1*
Author's Workplace:(1. Shanghai Ocean University, National Pathogen Collection Centre for Aquatic Animals, Shanghai Ocean University Key Laboratory of Freshwater Fishery Germplasm Resources of Ministry of Agriculture, Shanghai Engineering Research Center of Aquaculture, Shanghai University Knowledge Service Platform, Shanghai Ocean University Aquatic Animal Breeding Center (ZF1206), Shanghai 201306, China; 2. Chinese Academy of Fishery Sciences, Beijing 100039, China; 3. Hangzhou Thousand Island Sturgeon Dragon Technology Co., Ltd, Hangzhou 310000, China; 4. East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China)
Key Words:sturgeon; pathogenic bacteria; disinfectant; inhibitory effect
Abstract:

To evaluate the bacteriostasis of different disinfectants on sturgeon-pathogenic bacteria7 kinds of disinfectants were tested by minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) using double dilution method. The results showed that potassium ferrate had the best inhibitory effect on the 4 bacteria (MIC, 8 mg/L; MBC, 8~16 mg/L), and 5 kinds of disinfectants including glutaraldehyde, formaldehyde, benzalkonium bromide, hydrogen peroxide and quaternary ammonium salt complexing iodine had moderate effects. On the contrary, the povidone iodine was failed to inhibit the growth of sturgeon-pathogenic bacteria. Subsequently, the inhibitory effects of different concentrations of potassium ferrate on four sturgeon-pathogenic bacteria were tested. The results showed that the potassium ferrate disinfectant could temporarily inhibit the growth of bacteria at the concentrations of 5 mg/L and 9 mg/L, and the number of bacteria would recover to the original level in a short time; when the concentrations of disinfectant were 13 mg/L and 17 mg/L, the growth rate of bacteria would be inhibited for a long time or even all totally killed. This study has an important guiding significance for the usage of potassium ferrate to treat the bacteria-related disease of sturgeon farming.

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