Occurrence of Mycobacterium spp. and other pathogens in lymph nodes of slaughtered swine and wild boars ( Sus scrofa)

• Published in: Research in veterinary science Vol. 90; no. 2; pp. 185 - 188
• Main Authors: Lara, Gustavo Henrique Batista, Ribeiro, Márcio Garcia, Leite, Clarice Queico Fujimura, Paes, Antonio Carlos, Guazzelli, Alessandro, Silva, Aristeu Vieira da, Santos, Adolfo Carlos Barreto, Listoni, Fernando José Paganini
• Format: Journal Article
• Language: English
• Published: England Elsevier India Pvt Ltd 01.04.2011; Elsevier Limited
• Subjects: Animals; Brazil; Genetic diversity; Gram-Positive Bacterial Infections - microbiology; Gram-Positive Bacterial Infections - veterinary; Hogs; Lymph nodes; Lymph Nodes - microbiology; Lymphatic system; Meningitis; Microbiology; Microorganisms; Molecular weight; Mycobacterium - isolation & purification; Mycobacterium avium; Mycobacterium fortuitum; Mycobacterium gordonae; Mycobacterium intracellulare; Mycobacterium simiae; Mycobacterium spp; Mycobacterium szulgai; Nutrition research; Rhodococcus equi; Rhodococcus equi - isolation & purification; Streptococcus; Streptococcus - isolation & purification; Sus scrofa; Swine; Swine Diseases - microbiology; Veterinary medicine; Wild boars; Brazil; Brazil; Rhodococcus equi; Swine; Mycobacterium spp; Wild boars; Lymph nodes
• ISSN: 0034-5288; 1532-2661
• DOI: 10.1016/j.rvsc.2010.06.009

Mycobacterium spp. and other pathogens were investigated in 258 swine lymph nodes (129 with and 129 without apparent lesions), and 120 lymph nodes (60 with and 60 without lesions) from wild boars ( Sus scrofa). A total of lymph nodes from swine and wild boars were collected of different animals. Submaxillar and mesenteric lymph nodes were submitted to microbiological examination and colonies suggestive of Mycobacterium spp. (alcohol–acid bacilli) were submitted to PCR Restriction Assay (PRA). In swine with lymphadenitis, Mycobacterium spp. (24.1%) and Rhodococcus equi (13.2%) were the most prevalent microorganisms, while in lymph nodes without lesions were identified a complex of microorganisms, including of environmental mycobacteria. In wild boars with lymphadenitis, ß-haemolytic Streptococcus (10.0%), Mycobacterium spp (8.4%) and R. equi (6.6%) were the most frequent. Among mycobacterias were identified predominantly Mycobacterium avium subspecies type 1 (48.3%) and M. avium subspecies type 2 (16.1%), followed by Mycobacterium intracellulare, Mycobacterium szulgai, Mycobacterium fortuitum, Mycobacterium gordonae, Mycobacterium simiae, Mycobacterium nonchromogenicum and Mycobacterium intracellulare type 2.