Mycobacterial infection in goats: Diagnosis and pathogenicity of the organism |
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| Affiliation: | 1. NECE—Research Center in Business Sciences, University of Beira Interior, 6201-001 Covilhã, Portugal;;2. Miguel Torga Institute of Higher Education, 3000-132 Coimbra, Portugal;3. REMIT—Research on Economics, Management and Information Technologies, University Portucalense, 4200-072 Porto, Portugal;;4. School of Economics and Management, University of Minho, 4710-057 Braga, Portugal;;5. School of Education and Social Sciences, Polytechnic Institute of Leiria, 2411-901 Leiria, Portugal |
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| Abstract: | Counterimmunoelectrophoresis of serum samples and intradermal tuberculin testing were compared with cultural results for the diagnosis of mycobacterial infection in a goat herd. Only eight of 47 culture-positive animals were not identified by a combination of the other two methods.Typical isolates resembled Mycobacterium paratuberculosis in cultural characteristics and mycobactin dependence but serologically resembled Mycobacterium avium. One isolate was inoculated into guinea-pigs, mice, chickens and calves and, although the infection in guinea-pigs, mice and chickens resembled that of M. paratuberculosis, it did not cause Johne's-like disease in calves. |
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