As from January 2010 The Israeli Journal of Aquaculture-Bamidgeh (IJA) will be published exclusively as an on-line Open Access (OA) quarterly accessible by all AquacultureHub (http://www.aquaculturehub.org) members and registered individuals and institutions. Please visit our website (http://siamb.org.il) for free registration form, further information and instructions. This transformation from a subscription printed version to an on-line OA journal, aims at supporting the concept that scientific peer-reviewed publications should be made available to all, including those with limited resources. The OA IJA does not enforce author or subscription fees and will endeavor to obtain alternative sources of income to support this policy for as long as possible.
In the present investigation, efforts have were made to investigate out the antibacterial activity of skin mucus and intestinal mucus of five different Channa sp viz; Channa striatus, C. micropeltes, C. marulius, C. punctatus and C. gachua. The mucus collected were tested against five pathogenic bacteria namely Aeromonas hydrophila, Pseudomonas aeruginosa, Escherichia coli, Vibrio fischeri and V. anguillarum using Muller Hinton agar plates by using disc diffusion method. All the five Channa sp showed a better antibacterial activity and among the five species C. striatus showed a broad spectrum of antibacterial activity of skin mucus against A. hydrophila (19.5 ± 2mm). P. aeruginosa (28 ± 2.9mm) and V. anguillarum (24.5 ± 2.4mm) and intestinal mucus against A. hydrophila (16 ± 1.4mm), P. aeruginosa (29 ± 3.2mm), V. anguillarum (18.3 ± 1.5mm) and V. fischeri (21.5 ± 1.8). Among the five pathogens tested the maximum antibacterial activity was observed for the skin mucus against V. fischeri and the intestinal mucus against P. aeruginosa..
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