SURVEY OF BACTERIAL ISOLATES FROM FISHES OF JABALPUR MADHYA PRADESH
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Abstract
Commercial fish farming has been greatly affected by the emergence of disease problems. The most prominent among them are the infectious agents. The infectious diseases due to pathogenic bacteria constitute only a small portion of the total bacterial flora in fish farms but due to over dosage/indiscriminate use of antibiotic therapy, the problem of multiple drug resistance have become a great problem. Most of the fish farms whether freshwater. Transfer of drug residues to human beings again posses a great health hazard. At this point it is very important to know the bacterial flora of fishes and to study its antibiotic resistance pattern. Therefore, the present work was undertaken. The isolates were identified by employing various biochemical tests and survey was conducted to know the distribution of bacteria in different ponds.
The samples were collected from freshwater fishes such as Indian major carps (Cirrrhinus mrigala, Labeo rohita, Catla catla), cat fish and grass carp from ponds, rivers and market experimental fish pond and farmer’s ponds in Jabalpur. Three hundred fifty samples were screened in the whole study period from January 2013 to March 2014. 21 kind of Bacterial species were isolated from freshwater fishes. The percentage of Gram –ve bacteria were 78.52%, rest of Gram +ve bacteria were 22.42%. The chiefly bacterial isolates were E.coli,klebsiella, proteus, Pseudomonas, Aeromonas spp., and Yersinia, Edwardsiella spp. The sensitivity pattern investigated were as follows Streptomycin, Cephalexin, Rifampicin and Nitrofurantoin were found to be more than 80% fresh water bacterial isolates. A high degree of multiple drug resistance patterns has been exhibited by the bacterial isolates from fishes. The high degree of resistance to all the antibiotics by fresh water bacteria may pose a threat to human population by transferring these resistant genes to other bacteria as the consumption of fish food in peoples consuming fishes as diet.
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