International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 11, Issue:3, March, 2022

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2022.11(3): 128-139

Cluster Analysis and Resistotyping of MDR E. coli Isolated from Poultry at Different Age Intervals
Femina Anjum iD * and Sunil Maherchandani
Department of Veterinary Microbiology and Biotechnology, Rajasthan University of Veterinary and Animal Sciences, Bikaner, Rajasthan, India
*Corresponding author

In poultry industry of many countries, antibiotics are usually administered to whole flocks abusively which leads to emergence of resistance in various bacteria which make the infections difficult to treat. So the objective was to evaluate differences in the composition of multidrug resistant (MDR) Escherichia coli population at different age intervals of various genetic lines of broilers. One hundred and twenty strains of E. coli isolated from broilers per 10 days of interval from 0day to 30 day of age from three different farms have been tested against 29 antibiotics. All the isolates were MDR and had MAR (Multiple Antibiotic Resistance) index greater than 0.2, showing abusive use of antimicrobials. Beside this the increased resistance from day0 to 30 day of age were observed for cefazolin, cefuroxime, cefotaxime, cefepime, ampicillin, ticarcillin, piperacillin, polymyxin-b, meropenem, kanamycin, amikacin, clindamycin, trimethoprim, co-trimoxazole, doxycycline, erythromycin, ciprofloxacin and levofloxacin. Resistotyping revealed increased richness in diversity of E. coli in broilers. Strains of E. coli showed temporal instability as unique strains were observed at each interval of age. So there is need to reduce the abusive use of antimicrobials to reduce the pressure of this global problem.

Keywords: MDR, MAR, Escherichia coli, Poultry, Resistotype, Chick

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How to cite this article:

Femina Anjum and Sunil Maherchandani. 2022. Cluster Analysis and Resistotyping of MDR E. coli Isolated from Poultry at Different Age IntervalsInt.J.Curr.Microbiol.App.Sci. 11(3): 128-139. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.