Epidemiological characterization and risk factors associated with Mycobacterium avium subsp. paratuberculosis infection in dairy goats in the Brazilian semiarid region
DOI:
https://doi.org/10.5433/1679-0359.2015v36n1p267Palavras-chave:
Mycobacterium avium subsp. Paratuberculosis, Small ruminants, Epidemiology, Control.Resumo
The aim of this investigation was to conduct an epidemiological study and identify risk factors associated with the occurrence of paratuberculosis (Johne’s disease) in dairy goats within the semiarid region of Paraíba State. The study was done during the period of March 2009 to July 2011, during which 727 female goats from 86 flocks from the city of Monteiro, Paraíba were investigated. For the serological diagnosis of Mycobacterium avium subsp. paratuberculosis (Map) infection indirect ELISA tests (screening and confirmatory) were performed. Of the 727 animals used six (0.82%) were seropositive at the confirmatory test after screening, and of the 86 flocks six (6.97%) presented at least one seropositive animal. In positive flocks the frequency of reactive animals ranged from 5.26% to 16.60%. Risk factors identified were production system (weaning and reproduction) (odds ratio = 36.0; 95% CI = 2.6 –486.1; p < 0,001) and absence of technical infrastructure (odds ratio = 54.0; 95% CI = 4.5 –642.9; p < 0,001). It was concluded that Mycobacterium avium subsp. paratuberculosis is present in dairy goat flocks in the region; however, its influence on decrease productivity as well as the risk of transmission to humans through animal products must totally evaluated. Based on the analysis of risk factors, improvements are recommended for the technical infrastructure and the management of breeding goats.
Downloads
Publicado
Como Citar
Edição
Seção
Licença
Copyright (c) 2015 Semina: Ciências Agrárias
![Creative Commons License](http://i.creativecommons.org/l/by-nc/4.0/88x31.png)
Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial 4.0 International License.
Semina: Ciências Agrárias adota para suas publicações a licença CC-BY-NC, sendo os direitos autorais do autor, em casos de republicação recomendamos aos autores a indicação de primeira publicação nesta revista.
Esta licença permite copiar e redistribuir o material em qualquer meio ou formato, remixar, transformar e desenvolver o material, desde que não seja para fins comerciais. E deve-se atribuir o devido crédito ao criador.
As opiniões emitidas pelos autores dos artigos são de sua exclusiva responsabilidade.
A revista se reserva o direito de efetuar, nos originais, alterações de ordem normativa, ortográfica e gramatical, com vistas a manter o padrão culto da língua e a credibilidade do veículo. Respeitará, no entanto, o estilo de escrever dos autores. Alterações, correções ou sugestões de ordem conceitual serão encaminhadas aos autores, quando necessário.