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Preen Gland Infections
Blocked Oil Gland
Pleen gland infections occur when a duck's oil gland becomes blocked, resulting in the duck's inability to produce oil for preening.
Clinical Signs of Preen Gland Infection
Upon close inspection of the duck's preen gland, the gland and surrounding area will be enlarged and swollen. It will usually contain purulent or caseous material. Affected ducks will usually have poor plumage and will not be seen preening, a behavior which should normally occur multiple times daily. Ducks may also avoid accessing swimming areas.
Diagnosis of Preen Gland Infections
Preen gland infections are diagnosed based on clinical signs and history. Cultures of the preen gland fluid are useful for pinpointing the species of bacteria present. Candida species may also be present.
Treatment for Preen Gland Infections
Treatment is usually dependent on the results of the culture---whether to give antibiotics or antifungal therapy, depending on the organism responsible for the infection. Other therapies performed differ on the severity, and may include flushing the gland, infusing it with a proteolytic enzyme ointment, or in severe cases surgical removal of the gland may be needed to avoid eventual rupture and secondary septicemia.