Porcine lymph nodes lesions caused by Mycobacterium group III, (Runyon)

Authors

  • Marisa Cardoso Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Departamento de Medicina Veterinária Preventiva
  • Paulo Eduardo Bennemann
  • Fernando Pandolfo Bortolozzo Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Departamento de Patologia e Clínica Veterinária
  • Ivo Wentz Universidade Federal de Santa Maria, Faculdade de Veterinária, Departamento de Clínica, Santa Maria, RS
  • Sandra Borowski Centro de Pesquisas Veterinárias Desidério Finamor
  • Flauri Miggliavacca Secretaria de Agricultura, RS
  • Rejane Esteves Fernandes Secretaria de Agricultura, RS

DOI:

https://doi.org/10.1590/S1413-95962000000400012

Keywords:

Lymph nodes, Swine, Straw, Tuberculosis, Mycobacterinum

Abstract

Macroscopic lesions suggestive of tuberculosis in swine lymph nodes caused by mycobacteria were already described in many countries, including Brazil. This survey was performed in a farm with previous diagnostic of tuberculosis: lymph nodes were obtained from 146 pigs, aged between 2.5 and >; 14 months, and after macroscopic and microscopic examination they were cultured. Furthermore feed, water and sawdust were cultured. Macroscopic lesions were characterized as nodes with diameter between 1-2 mm, with a pale yellow, loose, caseous content. Lymph nodes from 12 pigs were positive for acid-fast bacteria. Mycobacterium-group III (Runyon) was isolated in four cases. The lesions occurred mainly in pigs aged between 6 and 7 months old. The same mycobacteria were isolated from sawdust. It is concluded that sawdust might be the source of infection.

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Published

2000-01-01

Issue

Vol. 37 No. 4 (2000)

Section

VETERINARY MEDICINE

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Cardoso M, Bennemann PE, Bortolozzo FP, Wentz I, Borowski S, Miggliavacca F, et al. Porcine lymph nodes lesions caused by Mycobacterium group III, (Runyon). Braz. J. Vet. Res. Anim. Sci. [Internet]. 2000 Jan. 1 [cited 2024 Sep. 9];37(4):321-4. Available from: https://www.revistas.usp.br/bjvras/article/view/5807