Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 8(s1): 55-61
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Esraa A. Abdelkarim1*, Abd-Elsalam E. Hafez1, Mohamed A. Hussein1, Tamer S. Elsamahy2

1Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt; 2Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.

Abstract | This study evaluated the incidence of E. coli in retail chicken meat in El-Sharkia- Egypt, and the effectiveness of zinc peroxide nanoparticles (ZnO2-NPs) against pan drug-resistant bacteria (PDR) isolated from chicken meat. A total of 403 chicken meat cuts-up samples were collected. The presence of E. coli was tested by the growth on selective medium and biochemical identification followed by antibiogram assay. Various virulence factors were phenogenotypically analyzed. The data revealed a 66.3% incidence of E. coli. The incidence in the fresh cuts-up sample was significantly higher than other samples (chilled and frozen). The incidence of multidrug-resistant (MDR) strains was found to be 81%. Genotypic characterization revealed the absence of stx1 from all strains, while the stx2 gene was found in 29% of PDR isolates. Also, ZnO2-NPs showed an efficiency against all PDR E. coli strains.

Keywords | Foodborne diseases, E. coli, Antimicrobial resistance genes, Antibiotics, Zinc peroxide nanoparticles