Mycobacterial infection of pigs in Croatia

Cvetnić, Ž. and Špičić, S. and Benić, M. and Katalinić-Janković, Vera and Pate, Mateja and Krt, B. and Ocepek, M. (2007) Mycobacterial infection of pigs in Croatia. Acta Veterinaria Hungarica, 55 (1). pp. 1-9. ISSN 0236-6290

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Abstract

During a five-year period (2000 to 2004) 74,342 pigs were tested by the intradermal tuberculin test in Croatia. Of them, 248 (0.33%) pigs were positive and 91 (0.12%) were found to be suspicious in 7 out of the 13 farms included in the study. Gross pathological changes characteristic of tuberculosis were observed in tuberculin-positive and/or suspicious swine. Mycobacterium was isolated from the lymph nodes of 183 out of 234 swine (78.2%). For better epidemiological understanding, isolates were typed by conventional methods, PCR and hybridisation. The results show that most of the isolates belonged to the Mycobacterium avium complex (175 isolates, 95.7%). Other isolates belonged to M. fortuitum (6 isolates, 3.3%), M. chelonae (1 isolate, 0.5%), and M. peregrinum (1 isolate, 0.5%). Isolated strains of the M. avium complex were identified as M. a. avium (37 isolates, 21.1%) and M. a. hominissuis (138 isolates, 78.9%).

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