Investigation of Trichomonas gallinae in passerines

Trichomoniasis, caused by the protozoan Trichomonas gallinae, has as main hosts birds of Columbidae family, which have a high prevalence without manifesting disease. The continuous growth pigeon population and its cosmopolitan nature mean that today there is worldwide distribution this species, being responsible for maintenance trichomoniasis in almost entire world. transmission disease may be direct contact, or indirect, through food water. This indirect route reason why such wide range bird orders can infected, very different from columbids falconiformes, strigiformes, passerines, piciformes, psittaciformes, gruiformes, galliformes anseriformes. Thus, objective study was to evaluate presence T. gallinae passerines received at Wild Animal Screening Center. In order carry out study, 300 Passerine corresponding 23 species were analyzed, Fauna Rehabilitation Center (NURFS) Federal University Pelotas (UFPel), seasons year between months March October 2021. Samples swabs oropharynx collected all individuals, material immediately placed falcon tube containing Trypticase-Yeast Extract-Maltose (TYM) culture medium sent Laboratory Protozoology Entomology (LAPEn), incubation bacteriological greenhouse subsequent identification on slide wet mounting under an optical microscope 40X objective. Wet performed triplicate analyzed entirety. Of evaluated vitro 25 had inconclusive results submitted PCR analysis, negative gallinae. Although no positive Passeriformes found, monitoring occurrence must continue, it known easily cause possible epidemic, leading losses wild fauna endangered birds.