This common infection of poultry caused by Escherichia coli, causes reduced hatchability, infection of the yolk sac (omphalitis), a septicemia (bacterial invasion of bloodstream) in ducks 2-8 weeks of age and salpingitis and peritonitis in breeder ducks. In market ducks, E. coli infection produces lesions very similar to those seen in Riemerella anatipestifer infection. Good sanitation and management are important preventive measures.

➡️Treatment: Sulfadimethoxine-ormetoprim (0.04-0.08%) and chlorotetracycline (0.044%) in feed are helpful in controlling this disease.