RT Journal Article
T1 Multi-Etiological Nature of Tuberculosis-Like Lesions in Condemned Pigs at the Slaughterhouse.
A1 Cardoso Toset, Fernando
A1 Gómez Laguna, Jaime
A1 Amarilla, Shyrley P
A1 Carrasco, Librado
A1 Astorga, Rafael J
A1 Luque, Inmaculada
A1 Fernández-Garayzábal Fernández, José Francisco
A1 Vela Alonso, Ana Isabel
AB Tuberculosis-like lesions (TBL) in pigs have been associated with microorganisms other than mycobacteria. In this work a histopathological and microbiological evaluation of TBL in pigs is shown. A total of 352 samples belonging to 171 pigs totally condemned at slaughterhouse due to generalized TBL were sampled and selected for analysis. Pyogranulomatous (56.2%) and granulomatous lesions (20.2%) were observed in all analysed organs. Most of the granulomas observed in both lymph nodes and lungs belonged to more advanced stages of development (stages III and IV) whereas in the liver and the spleen most of lesions belonged to intermediate stages (stages II and III). Different microorganisms were simultaneously detected from TBL in the 42.7% of the animals. Mycobacterium tuberculosis complex (MTC) (38%), coryneform bacteria (40.3%) and streptococci (28.1%) were the main groups of microorganisms detected after bacteriological analysis, with Trueperella pyogenes and Streptococcus suis as the most frequently isolated species. Mycobacteria belonging to MTC were the most frequently detected pathogens in granulomatous and pyogranulomatous lesions in submandibular lymph nodes (32.7%) and coryneform bacteria were the microorganisms more frequently isolated from lungs (25.9%) and spleen samples (37.2%). These results may provide new insights into the pathogenesis and diagnosis of this pathology. The importance of coryneform bacteria and streptococci in such processes must be evaluated in future studies.
PB Public Library Science
SN 1932-6203
YR 2015
FD 2015
LK https://hdl.handle.net/20.500.14352/35266
UL https://hdl.handle.net/20.500.14352/35266
LA eng
NO Junta de Andalucía
NO Centro para el Desarrollo Tecnológico Industrial (CDTI)
DS Docta Complutense
RD 3 may 2024