Seroprevalence of Brucella ovis-epididymitis, smooth-Brucella, leptospirosis, toxoplasmosis, and Maedi-Visna in sheep slaughtered in Minas Gerais State, Brazil

  • Elaine Maria Seles Dorneles Universidade Federal de Lavras, Departamento de Medicina Veterinária https://orcid.org/0000-0002-2753-1296
  • Alessandro Sá Guimarães Universidade Federal de Lavras, Departamento de Medicina Veterinária. Empresa Brasileira de Pesquisa Agropecuária, Gado de Leite https://orcid.org/0000-0002-1006-947X
  • Aurora Maria Gumarães Gouveia Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva
  • Fernanda Morcatti Coura Instituto Federal Minas Gerais, Departamento de Ciências Agrárias https://orcid.org/0000-0003-2243-3125
  • Filipe Borges Carmo Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva
  • Rebeca Barbosa Pauletti Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventiva
  • Vasco Azevedo Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas https://orcid.org/0000-0002-4775-2280
  • Walter Lilenbaum Universidade Federal Fluminense, Instituto Biomédico, Centro de Ciências Médicas https://orcid.org/0000-0002-2434-8728
  • Ricardo Wagner Almeida Vitor Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas
  • Raymundo Rizaldo Pinheiro Empresa Brasileira de Pesquisa Agropecuária, Caprinos e Ovinos https://orcid.org/0000-0003-3590-6948
  • Amanda Carvalho Rosado Ferreira Universidade Federal de Lavras, Departamento de Medicina Veterinária https://orcid.org/0000-0002-6287-1608
  • Mauricio Gauterio Dasso Instituto de Pesquisas Veterinárias Desidério Finamor
  • Andrey Pereira Lage Universidade Federal de Minas Gerais, Escola de Veterinária, Departamento de Medicina Veterinária Preventivas https://orcid.org/0000-0002-9325-5728
  • Marcos Bryan Heinemann Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Medicina Veterinária Preventiva e Saúde Animal
Keywords: Brucellosis., C. pseudotuberculosis, Leptospira spp., Maedi-Visna, T. gondii, Ovine, Serodiagnosis

Abstract

The present study aimed to estimate the prevalence of antibodies against Brucella ovis-epididymitis, smooth-Brucella,
leptospirosis, toxoplasmosis and Maedi-visna in sheep slaughtered in Minas Gerais, Brazil and to study their simultaneous
occurrence, including caseous lymphadenitis, at sheep and flock levels. The study was conducted at a sheep slaughterhouse
with Federal Inspection Service. Sera from 594 animals from 21 flocks were collected, in 2007. The agar gel immunodiffusion
(AGID) was employed to detect anti-B. ovis and anti-Maedi Visna antibodies, whereas Rose Bengal (RB) and the
2-mercaptoethanol test (2ME) were used to test anti-smooth Brucella antibodies. For the detection of anti-Leptospira
antibodies, sera were examined by microscopic agglutination test (MAT), while for the detection of IgG antibodies to
Toxoplasma gondii ELISA was used. Prevalence of antibodies against smooth Brucella, B. ovis-epididimitis, Leptospira
spp., toxoplasmosis and Maedi-Visna found in sheep from Minas Gerais was 0.00%, 24.04%, 25.96%, 10.46% and
3.08%, respectively; whereas the seroprevalence in flocks was 0.00%, 80.95%, 90.48%, 71.43% and 23.81%, respectively.
Moreover, when data on antibodies anti-Corynebacterium pseudotuberculosis, previously obtained, were included, about
60% of the flocks showed animals that were exposed to four or more of the studied agents. However, only 25.47% of
the sheep exhibited simultaneously antibodies against more than one pathogen. Thus, data from the present study on
sheep slaughtered in Minas Gerais, Brazil, showed no antibodies to smooth-Brucella and a low frequency of antibodies
anti-Maedi Visna lentivirus, and a high and widespread seroprevalence of B. ovis, Leptospira spp., and T. gondii among
animals and flocks.

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Published
2020-05-20
How to Cite
Dorneles, E., Guimarães, A., Gouveia, A. M., Coura, F., Carmo, F., Pauletti, R., Azevedo, V., Lilenbaum, W., Vitor, R., Pinheiro, R., Ferreira, A., Dasso, M., Lage, A., & Heinemann, M. (2020). Seroprevalence of Brucella ovis-epididymitis, smooth-Brucella, leptospirosis, toxoplasmosis, and Maedi-Visna in sheep slaughtered in Minas Gerais State, Brazil. Brazilian Journal of Veterinary Research and Animal Science, 57(2), e164278. https://doi.org/10.11606/issn.1678-4456.bjvras.2020.164278
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