Prevalence and Antibiotic sensitivity of Escherichia coli in Extensive Brackish water Aquaculture Ponds
Prevalence and Antibiotic sensitivity of Escherichia coli in Extensive Brackish water Aquaculture Ponds
Date
2003
Authors
Harish, R
Sumitha, CM
Hatha, A.A. Mohamed
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Prevalence and antibiotic resistance of Escherichia coli in the water and sediment samples
of brackish water aquaculture ponds adjacent to Cochin backwaters was analysed. More
than 50% of the water samples and more than 80% of sediment samples from all the sampling
stations were tested positive for £. coli. Risk assessment of the E. coli strains was carried
out using multiple antibiotic resistance (MAR) indexing. Majority of the strains were found
to be multiple antibiotic resistant suggesting their origin from high risk sources of
contamination such as human where antibiotics are frequently used. While none of the £.
coli strains were resistant against amikacin, chloramphenicol, streptomycin and trimethoprim,
considerable levels of resistance was encountered against ampicillin, erythromycin,
penicillin G and vancomycin. High prevalence of £. coli in the water and sediment samples
of this extensive brackish water ponds indicates high degree of faecal pollution of this
environment. The high risk nature of the strains warrants efficient post harvest and processing
measures to avoid health risk to consumers.
Description
Keywords
Escherichia coli, Aquaculture pond, Antiobiotics, MAR index
Citation
Fishery Techn 40(1):8-12