Occurrence of Mycoplasma hyopneumoniae in slaughter pigs from Southern Brazil

  • Violetta Dias Pacce Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Campus Universitário Capão do Leão
  • Natasha Rodrigues de Oliveira Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Campus Universitário Capão do Leão
  • Sérgio Jorge Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Campus Universitário Capão do Leão
  • Odir Antônio Dellagostin Universidade Federal de Pelotas, Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Campus Universitário Capão do Leão https://orcid.org/0000-0003-2803-4088
Keywords: Diagnosis, Enzootic pneumonia, Nested-PCR

Abstract

Mycoplasma hyopneumoniae is the causative agent of enzootic pneumonia (EP), a disease that is highly prevalent and globally distributed, causing significant economic losses to the swine industry. Disease progression is characterized by reduced feed conversion and the development of lung lesions. Considering the limited information about the epidemiology of EP in Southern Brazil, the main objective of this study was to determine the occurrence of M. hyopneumoniae in swine lung samples and to evaluate the scores of lung lesions caused by local strains. A total of 120 samples was randomly collected and processed. DNA was extracted from lung tissue to perform nested-PCR and lungs were inspected to evaluate the presence of the pneumonia-like gross lesions of M. hyopneumoniae. The results showed 95.8% positive samples, while the lung lesion score analysis showed suggestive lesions in 60% of samples. The detection of positive samples in nested-PCR was associated with the presence of pneumonia-like gross lesions (P < 0.01). The results demonstrate a high occurrence of EP in slaughter pigs from southern Brazil.

Downloads

Download data is not yet available.
Published
2019-06-28
How to Cite
Pacce, V., Oliveira, N., Jorge, S., & Dellagostin, O. (2019). Occurrence of Mycoplasma hyopneumoniae in slaughter pigs from Southern Brazil. Brazilian Journal of Veterinary Research and Animal Science, 56(1), e150072. https://doi.org/10.11606/issn.1678-4456.bjvras.2019.150072
Section
FULL ARTICLE