Contagious serositis in ducks
The Infectious serositis of ducks ( Infectious Anatine serositis , Exudative Anatine septicemia ) is an infectious disease primarily by duck that the bacterium Riemer anatipestifer from the genus Riemer Ella ( flavobacteriales , formerly known as anatipestifer Pasteurella caused hereinafter). Besides ducks, turkeys are also endangered. The disease is less dramatic in other waterfowl or chicken .
clinic
The infectious disease occurs in ducks between two and seven weeks of age and in turkeys between five and fifteen weeks. Clinical symptoms are lameness , greenish diarrhea , watery-fibrinous nasal mucosal inflammation , sinusitis , conjunctivitis and central nervous disorders. Generalized inflammation of the serous membranes with watery-fibrinous coatings, pericarditis , liver inflammation and intestinal inflammation occur . Chronic courses lead to meningitis , joint inflammation and fallopian tube inflammation .
Diagnostics and differential diagnoses
The diagnosis can be made by detecting pathogens from tracheal swabs, lungs and air sacs. The immediate cultivation of the samples is particularly important. Smears on blood agar with added antibiotics are preferred, which are then incubated for two days under microaerophilic conditions. Riemerella anatipestifer is oxidase-, catalase- and gelatinase-positive.
Pasteurella multocida , Escherichia coli , mycoplasma , chlamydia and Clostridium botulinum should be considered as bacterial differential diagnoses .
therapy
R. anatipestifer is resistant to many antibiotics , which is why an antibiogram is recommended. Sensitivities occur to penicillin , tetracycline , erythromycin , ampicillin , gyrase inhibitors and oleandomycin . Getting a stock free of pathogens borders on impossibility. Inactivated vaccines for the chicks or immunization of the parent animals are also effective.
literature
- Medical microbiology, infection and epidemic theory von Rolle / Mayr, Enke Verlag Stuttgart (2007)
