Increasing prevalence of Mycoplasma bovis in Danish cattle

L.J.M. Kusiluka, B. Ojeniyi, N.F. Friis

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    A study on the prevalence of mycoplasmas in pneumonic bovine lungs was performed on material submitted for diagnostic pul poses at the Danish Veterinary Laboratory, Copenhagen. Among the 50 examined cases 43 (86.0%) were found to be infected with mycoplasmas. The predominant mycoplasmas were Ureaplasma spp. (72.0%), M dispar (48.0%) and M. bovis (24.0%). Other mycoplasmas were M. bovirhinis (20.0%) and M. bovigenitalium (6.0%). Among the infected lungs multiple species infections were predominant (76.7%) over single species infections (23.3%) with M.dispar-Ureaplasma (25.6%), M. bovis-Ureaplasma (18.6%) and M. dispar-M. bovirhinis-Ureaplasma (11.6%) infections being the most frequently encountered combinations. There appears to be an increasing prevalence of Al. bovis (24.0%) as compared to earlier reports (0.6-2.0%), thus calling fur special attention upon this mycoplasma. Pulsed field gel electrophoresis (PFGE) analysis of ii field isolates of M. bovis from 9 different farms revealed different profiles except for 2 isolates which were recovered from the same farm. Because mycoplasmas belonging to the M.mycoides cluster' were not encountered during this study; it appears that the Danish cattle population is still free fi om this group of mycoplasma in spite of their presence in some other European countries.
    Original languageEnglish
    JournalActa Veterinaria Scandinavica
    Issue number2
    Pages (from-to)139-146
    Publication statusPublished - 2000


    • electrophoresis
    • pneumonia


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