[[File:Trichomonas.JPG|thumb|200px|right|Trichomonas species with its anterior flagellae and undulating membrane]]
==Introduction==
==Introduction==
Avian trichomoniasis is primarily an '''upper gastrointestinal''' disease of '''birds''' caused by the flagellate [[Protozoa | protozoal]] pathogen ''[[Trichomonas gallinae]]''.
Avian trichomoniasis is primarily an '''upper gastrointestinal''' disease of '''birds''' caused by the flagellate [[Protozoa | protozoal]] pathogen ''[[Trichomonas gallinae]]''.