Abstract
Avian trichomoniasis, caused by the flagellate protozoan Trichomonas gallinae, is a disease that mainly affects the upper digestive tract of birds. The main natural hosts of this agent are birds of the order Columbiformes, Falconiformes and Strigiformes. Oral lesions, obstructing the digestive and upper respiratory tracts, caused feeding, and breathing difficulty and often cause death by …