Phenotypic antimicrobial resistance (AMR) of avian pathogenic (APEC) from broiler breeder flocks between 2009 and 2018.

Colibacillosis is one of the most important diseases in poultry production. The use of antimicrobials remains a therapeutic cornerstone for avian pathogenic (APEC), thereby contributing to the development of antimicrobial resistance (AMR). The aim of this study was to characterize AMR in broiler breeder flocks reared under commercial conditions.