Abstract
This study aimed to verify the occurrence of Dioctophyme renale in stray dogs in the city of Pelotas, in the state of Rio Grande do Sul, Brazil. The Laboratório Regional de Diagnóstico of the Universidade Federal de Pelotas received 146 wandering dogs for necropsy, sent by the City Hall of Pelotas from March 2012 to January 2020. Among the necropsied animals, seventeen dogs (11.64%) were diagnosed with dioctophymosis. Among these dogs, 11 were parasitized with one specimen in the right kidney, two dogs presented two specimens in the right kidney, and in other two dogs, the parasites were in the abdominal cavity. In one dog, two parasites were found in the left kidney; in another dog, both kidneys were parasitized, with two parasites in the right kidney and one in the left kidney. The data obtained in this study showed that the occurrence of D. renale in stray dogs in the city of Pelotas is high, and D. renale mainly parasitizes the right kidney.
Highlights
Dioctophyme renale (Goeze, 1782) belongs to phylum Nematoda and superfamily Dioctophymoidea; it can reach 100 cm in length and 1.2 cm in diameter (Anderson, 2000)
The data obtained in this study showed that the occurrence of D. renale in stray dogs in the city of Pelotas is high, and D. renale mainly parasitizes the right kidney
Materials and Methods One hundred and forty-six stray dogs from Pelotas had their necropsies performed at the Laboratório Regional de Diagnóstico (LRD), Universidade Federal de Pelotas (UFPel) from March 2012 to January 2020
Summary
Dioctophyme renale (Goeze, 1782) belongs to phylum Nematoda and superfamily Dioctophymoidea; it can reach 100 cm in length and 1.2 cm in diameter (Anderson, 2000). Distributed worldwide and frequently described parasitizing domestic and wild carnivores, D. renale was first reported in Brazil in 1860 (Molin) parasitizing a maned wolf (Chrysocyon brachiurus) (Leite et al, 2005). Dioctophyme renale in wandering canines reports in cattle, horses, pigs, cats, seals, and humans; the latter are considered accidental hosts (Kommers et al, 1999; Leite et al, 2005; Zabott et al, 2012). The annelids serve as food for fish, freshwater frogs, and other animals; these animals are classified as paratenic hosts and are part of the food chain of domestic and wild carnivores. The definitive hosts are infected by ingesting the infected annelids, fish, or frogs (Anderson, 2000; Mascarenhas & Müller, 2015)
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