Parasitic helminths of the digestive system of wild boars bred in captivity

Abstract

This study aimed to identify the parasites that inhabit the digestive system of Sus scrofa scrofa from a commercial breeding facility in southern Brazil, and reports the first occurrence of Trichostrongylus colubriformis in wild boars. The gastrointestinal tracts of 40 wild boars from a commercial breeding facility were collected and individualized during slaughter in a cold-storage slaughterhouse. Out of this total, 87.5% were parasitized by the helminths Ascaris suum, Trichostrongylus colubriformis, Oesophagostomum dentatum and Trichuris suis. T. colubriformis presented a prevalence of 45%, mean intensity of 28.4 and mean abundance of 12.8. The data from this study showed that T. colubriformis not only has a capacity to develop in the small intestines of wild boars, but also adapts well to animals raised in captivity, thus representing a possible cause of economic loss in commercial wild boar farming.Keywords: Wild boar, Sus scrofa scrofa, helminths, Trichostrongylus colubriformis. gastrointestinal tract. ResumoO estudo teve por objetivo identificar os parasitos que habitam o sistema digestório de Sus scrofa scrofa provenientes de criatório comercial do sul do Brasil, reportando a primeira ocorrência de Trichostrongylus colubriformis em javalis. Foram coletados e individualizados os tratos gastrintestinais de 40 javalis oriundos de criatório comercial durante abate em frigorífico. Destes, 87,5% estavam parasitados por helmintos, sendo eles, Ascaris suum, Trichostrongylus colubriformis, Oesophagostomum dentatum e Trichuris suis. T. colubriformis apresentou prevalência de 45%, intensidade média de 28,4 e abundância média de 12,8. Os dados deste trabalho demonstram que T. colubriformis além da capacidade de desenvolvimento no intestino delgado de javalis, adapta-se bem às criações, representando uma possível causa de perdas econômicas nas criações de javalis.

Epidemiology and Integrative Taxonomy of Helminths of Invasive Wild Boars, Brazil

“…This is the first study on the helminthological diversity of non-captive wild boars in Brazil, and the first report of the occurrence of M. hirudinaceus , G. urosubulatus , and S. dentatus in this species in the country; the other helminths have been reported in captive wild boars in Brazil [ 13 , 14 , 15 , 16 , 17 ]. A greater species variety was observed in wild specimens in comparison with captive wild boars from the same region [ 14 ].…”

“…Some studies have evaluated the helminth fauna of captive wild boars [ 13 , 14 , 15 , 16 , 17 ], but there are no studies on wild populations from Brazil. Knowing that there is a growing need to understand the implications of this invasive species and their parasites on the balance of ecosystems as well as on human and animal health, our study documents the occurrence of helminths in wild boars from São Paulo State, one of the most affected regions of Brazil [ 18 ].…”

Cytochrome c oxidase subunit 1 gene reveals species composition and phylogenetic relationships of Oesophagostomum spp. infecting pigs in northeastern Brazil

“…Piauí is one of the states where its presence has not yet been registered. Oesophagostomum dentatum and O. quadrispinulatum infect domestic pigs in Brazil, Europe and Asia, with O. dentatum being identified in wild boar in Brazil as well (Silva & Müller, 2013;Li et al, 2017). It can be deduced that the process of introduction of pig farming in Brazil and its expansion also enabled the expansion of these helminth species.…”

Parasitismo Por Monodontus Spp. Em Javali (Sus Scrofa Scrofa) No Sudoeste Goiano - Relato De Caso

“…Javalis (Sus scrofa scrofa) são predispostos à ocorrência de helmintíases, independentemente se são animais de vida livre ou criados em cativeiro. Estudos realizados no Brasil demonstraram uma prevalência de infecção por helmintos de 66,5% nesta espécie (MUNDIN et al, 2004;GOMES et al, 2005;SILVA et al, 2013;MARQUES et al, 2016).…”