DetailsPigeon fanciers call the disease 'canker'. The cause is a single-cell organism with flagellates: Trichomonas gallinae. It is a disease of young pigeons with inflammation and ulceration in the oesophagus, crop and proventriculus. Characterized by yellowish necrotic lesions: caseous necrotic material. The main source of infection is contaminated drinking water and infected parents feeding their young. The incubation period is 3 to 14 days.
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