Phenotypic virulence characterization of avian pathogenic Escherichia coli (APEC) isolates from broiler breeders with colibacillosis in Mississippi

In this study, we evaluated the phenotypic virulence characteristics of avian pathogenic Escherichia coli (APEC) isolates from broiler breeders with colibacillosis in Mississippi. Also, the relationship between phenotypic and genotypic virulence patterns was determined.