Fig. 4From: Efficacy of zinc oxide and copper oxide nanoparticles on virulence genes of avian pathogenic E. coli (APEC) in broilersAntimicrobial sensitivity tests (AST) of E. coli O17 strain (A) against commercial antibiotic disks indicated complete resistance and (B) against various AG-ZnNPs concentrations indicated complete resistance, while (C) against AG-CuNPs showed various inhibition zone diametersBack to article page