Parasitological diagnosis of Didelphis albiventris Lund, 1841 and Lutreolina crassicaudata Desmarest, 1804 (Marsupialia: Didelphidae) of free life in Rio Grande do Sul, Brazil

• Autor: Marques, Sandra Márcia Tietz
• Formato: artículo
• Fecha de Publicación: 2025
• Institución: Universidad Nacional Federico Villarreal
• Repositorio: Revistas - Universidad Nacional Federico Villarreal
• Lenguaje: español
• OAI Identifier: oai:ojs2.revistas.unfv.edu.pe:article/1955
• Enlace del recurso: https://revistas.unfv.edu.pe/NH/article/view/1955
• Nivel de acceso: acceso abierto
• Materia: Feces; Marsupials; Opossums; Parasites; Zoonoses; Heces; Marsupiales; Parásitos; Zarigüeyas; Zoonosis; Gambás; Fezes; Marsupiais; Parasitos

The objective of this study is to evaluate the frequency of gastrointestinal parasites in free-living marsupials received at the Veterinary Clinics Hospital of the Federal University of Rio Grande do Sul, southern Brazil. Fecal samples from nine white-eared opossums (Didelphis albiventris Lund, 1841) and three thick-tailed opossums (Lutreolina crassicaudataDesmarest, 1804) were processed by the Willis and Lutz methods. Both species of marsupials presented nematode eggs and/or protozoan oocysts in their feces. In white-eared opossums, eggs of Ancylostoma spp. Ercolani, 1859 and Capillaria spp. Zeder, 1800 (4/8 - 50%), Ancylostoma spp. and Cruzia tentaculata (Rudolphi, 1819) Travassos, 1917 (2/8 - 25%), C. tentaculata (2/8 - 25%) and oocysts of Eimeria spp. Schneider, 1875 (1/8 - 12.5%) were identified. The only hatchling presented eggs of Ancylostoma spp., Trichuris spp. Roederer, 1761 and Rhopalia coronatus Stiles and Hassall, 1898. The three opossums presented eggs of Ancylostoma spp. (3/3 - 100%) and two also presented oocysts of Eimeria spp. (2/3 - 66.7%). All animals were dewormed and parasitological tests were repeated until negative results. Parasitological diagnosis is a protocol upon admission so that the response to treatment of the underlying pathology occurs without interference from parasitic diseases.