Abstract
Nasal mites (Mesostigmata: Rhinonyssidae) are obligatory endoparasites of birds, and the resulting parasitism can be harmful to the host's respiratory system. The nasal mite Sternostoma tracheacolum Lawrence has caused significant respiratory issues, including serious injuries that possibly cause death of the host. In this study, we report two cases of captive birds parasitized by S. tracheacolum. The first case is a histopathological description of S. tracheacolum parasitizing the Gouldian Finch (Chloebia gouldiae) in the southeast region of Brazil, that showed partially or totally absence of the characteristic respiratory epithelium in trachea lumen. The other describes, for the first time, the parasitism of this species in a canary (Serinus canaria) in the northeast region of the country.
Highlights
Mites of the family Rhinonyssidae Trouessart, 1895, popularly known as nasal mites, are obligatory endoparasites of birds that target the respiratory system (PENCE, 1975)
We report two cases of captive birds parasitized by S. tracheacolum
The parasitism of the S. tracheacolum was only found during necropsy in the trachea of C. gouldiae, since it had no clinical signs in the respiratory system
Summary
The objectives of the present study are: to describe a parasitism and characterize the histopathological lesions of S. tracheacolum on a Gouldian Finch (Chloebia gouldiae) bird in the southeast region of Brazil; and to document parasitism of the same nasal mite on a canary (S. canaria), but in the northeast region of the country
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