Correlation between pathological findings and bacteriological culture on paratuberculous cattle.

• Autor(a) principal: RISTOW, P.
• Data de Publicação: 2008
• Outros Autores: RODRIGUES, A. B. F., FONSECA, L. S., OELEMANN, W. M. R., CARVALHO, E. Q., SOUZA, G. N. de, MARASSI, C. D., LILENBAUM, W.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/596472
• topic: Johne's disease; Map; Pathology; cattle; paratuberculosis

ABSTRACT - Paratuberculosis (PTB) is a chronic enteritis determined by Mycobacterium avium subsp. paratuberculosis (Map) that affects ruminants. Three crossbred dairy cattle with clinical PTB were necropsied; tissue samples were collected and processed for histopathology and culture. Intestinal lesions were characterized in three levels of severity (mild, moderate and severe) by gross examination. Gross examination, microscopy and tissue culture were analyzed and compared. Mean tissue culture sensitivity was 66.6%. Map was recovered from 42.8% of intestinal mild lesions, 55.5% of intestinal moderate lesions, and 100% of severe intestine lesions. The results indicate a significant correlation between the level of lesions severity and the isolation of Map.