Prevalence of trichomonas gallinae from the upper digestive tract of the common pigeon, columba livia in the southern Brazilian State, Rio Grande do Sul

RESUMO

Trichomonas gallinae (Rivolta, 1878) is a parasitic protozoan of the upper digestive tract and various organs of different avian groups, being common among the columbids, was isolated described and its prevalence studies in the southern brazilian state, Rio Grande do Sul. The morphology study of the live speciemens done by examinations of fresh and stained specimens, showed that the T. gallinae isolated has the same morphological characteristics as the upper digestive tract trichomonads previously described by other authors