Indian Journal of Animal Research

  • Chief EditorK.M.L. Pathak

  • Print ISSN 0367-6722

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Indian Journal of Animal Research, volume 50 issue 5 (october 2016) : 773-775

Characterization and antibiogram of enteropathogenic Escherichia coli isolated from diarrhoeic and non-diarrhoeic dogs in South Bengal, India

A. Banik, D.P. Isore, S.N. Joardar, K. Batabyal*, S. Dey
1<p>Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Kolkata&ndash;700 037, India</p>
Cite article:- Banik A., Isore D.P., Joardar S.N., Batabyal* K., Dey S. (2015). Characterization and antibiogram of enteropathogenic Escherichia coli isolated from diarrhoeic and non-diarrhoeic dogs in South Bengal, India . Indian Journal of Animal Research. 50(5): 773-775. doi: 10.18805/ijar.5713.

Diarrhoea in canines is mainly caused by Escherichia coli which can be fatal also. To understand the depth of this infection, a study was undertaken to detect E. coli isolates from diarrhoeic and non-diarrhoeic dogs in Southern part of West Bengal. A total of 112 canine samples were tested during May to September 2012 revealing approx 63.4% (71) samples positive for Escherichia coli. The most common serotypes were O8 (23.9%) followed by O157 (19.7%), O101 (16.9%), O26 (15.5%), O153 (12.7%) and O6 (11.3%). Among these O6, O8, O26 and O157 were highly pathogenic to mice causing almost 100% mortality within 24hrs of inoculation and were also detected to be haemolytic on sheep blood agar plates except serotype O8. These isolates were mostly sensitive to nalidixic acid (80.29%), cotrimoxazole (78.88%), ciprofloxacin (74.65%), colistin and ceftriaxone (both 71.83%) but were resistant to amikacin (97.18%), kanamycin (95.78%), cephalexin (92.96%) and enrofloxacin (84.51%).

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