| pathologic and molecular characterization of histomoniasis in peafowl ( pavo cristatus). | histomonas meleagridis is a flagellate protozoan organism that can cause severe necrotizing typhlitis and hepatitis in gallinaceous birds. peafowl ( pavo spp.) have been shown to be susceptible to histomoniasis in experimental settings, but there are few reports of natural histomoniasis in this species. a retrospective study of the archived cases at 2 veterinary diagnostic laboratories in the united states yielded 5 cases of peafowl with gross and histologic findings characteristic of histomonia ... | 2017 | 28065124 |