Escherichia coli Strains Characterization Isolated from Post-Weaning Diarrhea in Pigs

摘要

From the small intestine of weaned piglets aged 45-90 days were isolated inpure culture nonhemolytic strains of E.coli, first on usual media, then by subculturing onLevin agar and blood agar 10%. The isolated strains were framed in the genus and speciesbased on cultural, morphology and some biochemical characters.Antibiogram results reveal a high resistance of isolated strains to the antimicrobialsthat are often used in medical practice.