Molecular characterization of ornithostrongylus quadriradiatus isolated from a racing pigeon (columba livia domestica)

J Parasitol. 2023 Nov 1;109(6):543-549. doi: 10.1645/22-103.ABSTRACTAn infestation of Ornithostrongylus quadriradiatus, has been found in a racing pigeon Columba livia domestica). In addition, this individual had a mild infection with Trichomonas spp. and Eimeria spp. The bird showed symptoms of increased appetite; unformed, dark- green feces; and lack of typical male behavior, but the general condition of this pigeon was good. The pigeon was euthanized because of a permanent inability to fly due to an injury to the wing. A postmortem examination revealed the presence of very small dark-pink twisted nematodes with the morphology of O. quadriradiatus in the small intestine, mainly the duodenum. Histopathology showed segmental inflammatory changes in the intestines caused by both blood-sucking nematodes and Eimeria spp. The 5.8S ribosomal ribonucleic acid polymerase chain reaction amplicons from deoxyribonucleic acid extracted from O. quadriradiatus had 82.40% identity with Australostrongylus victoriensis and 81.20% with Travassostrongylus spp. This is the first molecular characterization of O. quadriradiatus-a relatively rare pigeon parasite.PMID:37944598 | DOI:10.1645/22-103
Source: The Journal of Parasitology - Category: Parasitology Authors: Source Type: research