Antimicrobial resistance in bacteria from the family Enterobacteriaceae is an important indicator of the emergence of resistant bacterial strains in the gut microbiota. A total of 150 cloacal swabs were collected from free range chickens, 217 Enterobacteriaceae isolates were identified. This study investigated the antimicrobial susceptibility and resistance of commensal Enterobacteriaceae from free-range chickens to 14 antimicrobial agents using the disc diffusion method. | Phenotypic and genotypic characterization of antimicrobial resistance of Enterobacteriaceae isolated from free range chicken in Andhra Pradesh