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Arquivos do Instituto Biológico

On-line version ISSN 1808-1657


HIGINO, Severino Silvano dos Santos et al. Tuberculosis in goats and sheep slaughtered in the semiarid of the Paraíba state, Northeast region of Brazil. Arq. Inst. Biol. [online]. 2013, vol.80, n.3, pp.281-287. ISSN 1808-1657.

The aim of this work was to isolate and characterize microorganisms in hypertrophied lymph nodes or gross lesions suggestive of tuberculosis collected from 12 goats and 28 sheep slaughtered at the public slaughterhouse of Patos municipality, Paraíba State, in the Northeast region of Brazil. The identification of mycobacteria was performed by the PRA method (PCR-Restriction Enzyme Analysis). Histopathological examination of lesions was also performed. Organs affected were liver, lung, mammary gland, bladder and mediastinal, mesenteric, submandibular, parotid, popliteal, precrural, prescapular and superficial inguinal lymph nodes. Histopathological examination showed the presence of granulomas in 8 (20.00%) animals. Of the 12 goats, 1 (8.33%) was positive in the culture of mycobacteria, and by PRA method the isolate was classified as belonging to the M. tuberculosis complex. Two (7.14%) sheep were positive for the presence of environmental mycobacteria. There was isolation of Corynebacterium pseudotuberculosis in 8 (66.66%) goats and 17 (60.71%) sheep, and simultaneous isolation of mycobacteria and C. pseudotuberculosis in 1 (8.33%) goat and 1 (3.57%) sheep. The isolation of mycobacteria of the M. tuberculosis complex in goats in this study raises concerns of public health, as professionals involved in handling these animals and the meat and milk consumers are exposed to the risk of infection.

Keywords : mycobacteriosis; Mycobacterium tuberculosis complex; small ruminants; laboratorial procedure.

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