DOI: 10.36347/sjavs.2018.v05i06.003

Pages: 306-309

Abstract: The study was designed with the aim of isolation and identification of Escherichia coli and estimation of its antimicrobial resistance to ascertain the prevalence in pet dogs. A total of 36 Escherichia coli isolates recovered from 82 rectal swab samples of non diarrhoeic pet dogs at Chittagong Metropolitan area. Antimicrobial resistance was determined with 9 antimicrobial agents by means of disc diffusion assay. 100% resistance was observed in Ampicillin which was followed by Amoxicillin (95.83%), Colistin Sulfate (79.16%), Oxytetracycline (75%), Cotrimoxazole (75%), Ciprofloxacin (70.83%) and Ceftriaxone (62.5%). Conversely, 58.33% sensitivity was shown by Gentamicin and 91.66% intermediately sensitive as Doxycyclin. All Escherichia coli isolates were reported as resistant to more than five antibiotics (multidrug-resistant). Therefore, more attention should be paid to the indiscriminate use of antimicrobials in companion animals (dogs) and they should be treated with sensitized drugs on the basis of result of the sensitivity study in the specific areas.