| prevalence and genotyping of trichomonas gallinae in pigeons and birds of prey. | avian trichomonosis is a world-wide parasitic disease caused by the protozoan trichomonas gallinae. although several degrees of pathogenicity have been described on the basis of the clinical signs in birds, there are few reports concerning the genetic characterization of the parasite and its relationship with pathogenicity. the parasite usually appears apathogenic but is occasionally responsible for outbreaks of the disease in avian populations, particularly affecting nestlings of ornithophagous ... | 2009 | 19468936 |