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Toxoplasma gondii and Neospora caninum in slaughtered pigs from Northeast, Brazil

Veterinary Parasitology, ISSN: 0304-4017, Vol: 202, Issue: 3, Page: 305-309
2014
  • 43
    Citations
  • 0
    Usage
  • 57
    Captures
  • 1
    Mentions
  • 4
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    43
  • Captures
    57
  • Mentions
    1
    • News Mentions
      1
      • News
        1
  • Social Media
    4
    • Shares, Likes & Comments
      4
      • Facebook
        4

Most Recent News

Seroprevalence of Toxoplasma gondii Infection in Tibetan Pigs in Nyingchi, Tibet, China

ABSTRACT The survey was to investigate the seroprevalence of T. gondii in Tibetan pigs in Tibet, China. A total 454 serum samples were collected from

Article Description

The aims of this study were to evaluate the presence of anti- Toxoplasma gondii and anti- Neospora caninum antibodies, to identify associated risk factors and to isolate T. gondii from slaughtered pigs in Paraíba State, Brazil. A total of 190 pigs from public slaughterhouses were used in the study. An indirect immunofluorescence test was used to detect antibodies, and the isolation of T. gondii was performed with a bioassay in mice based on tissues from seropositive animals. A total of 50 g of brain, heart and tongue tissue from 37 positive pigs with titres ≥1:64 was ground, digested with acidic pepsin and inoculated into mice. The prevalence of anti- T. gondii antibodies was 19.5% (95% CI: 14.1%; 25.8%) (37/190), with titres ranging from 1:64 to 1:2048. Viable T. gondii parasites were isolated from 13 of the 37 (35.1%; 95% CI: 20.2%; 52.5%) seropositive pigs. We found that the virulence of the isolates varied; three of these isolates were able to kill all of the inoculated mice. The risk factors for infection were extensive husbandry and feeding with leftovers. The prevalence of antibodies to N. caninum in pigs was 3.2% (95% CI: 1.2%; 6.7%) (6/190), with titres ranging from 1:100 to 1:3200. None of the variables studied were considered to be risk factors for N. caninum. These results show that the prevalence of anti- T. gondii antibodies in swine is high in Paraíba State, that the percentage of viable T. gondii parasites recovered from these animals is also high and that infection by this parasite is closely related to the management of swine. Despite the low prevalence of N. caninum in pigs, further studies are necessary to determine the importance of this parasite for the species.

Bibliographic Details

Feitosa, Thais Ferreira; Vilela, Vinícius Longo Ribeiro; de Melo, Lídio Ricardo Bezerra; de Almeida Neto, João Leite; Souto, Diego Vagner de Oliveira; de Morais, Dayana Firmino; Athayde, Ana Célia Rodrigues; Azevedo, Sérgio Santos; Pena, Hilda Fátima de Jesus

Elsevier BV

Immunology and Microbiology; Veterinary

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