Colibacillosis A common duck disease caused by the bacterium Escherichia coli. E. Coli can cause embryonic and duckling mortality by infecting the yolk sac. Most common is the infection of the digestive track and air sacs.
Infected ducklings appear droopy and listless and exhibit diarrhea and ocular discharge.
Fowl cholera Contagious disease of domestic ducks and other birds, which is caused by the bacterium Pasteurella multocida. Sick ducklings refuse feed and exhibit diarrhea and mucus discharge from the mount. Salmonellosis Another common duck disease caused by a variety of serotypes of salmonella. Infected ducks are listless, dehydrated, exhibit diarrhea, and show signs of incoordination and head tremors. Necrotic enteritis Common infectious disease of breeder ducks for which the exact cause is unknown.