Prevalence of paratuberculosis in the dairy goat and dairy sheep industries in Ontario, Canada

Cathy A. Bauman, Andria Jones-Bitton, Paula Menzies, Nils Toft, Jocelyn Jansen, David Kelton

    Research output: Contribution to journalJournal articleResearchpeer-review

    229 Downloads (Pure)


    A cross-sectional study was undertaken (October 2010 to August 2011) to estimate the prevalence of paratuberculosis in the small ruminant dairy industries in Ontario, Canada. Blood and feces were sampled from 580 goats and 397 sheep (lactating and 2 y of age or older) that were randomly selected from 29 randomly selected dairy goat herds and 21 convenience -selected dairy sheep flocks. Fecal samples were analyzed using bacterial culture (BD BACTEC MGIT 960) and polymerase chain reaction (Tetracore); serum samples were tested with the Prionics Parachek enzyme-linked immunosorbent assay (ELISA). Using 3-test latent class Bayesian models, true farm-level prevalence was estimated to be 83.0% [95% probability interval (PI): 62.6% to 98.1%] for dairy goats and 66.8% (95% PI: 41.6% to 91.4%) for dairy sheep. The within-farm true prevalence for dairy goats was 35.2% (95% PI: 23.0% to 49.8%) and for dairy sheep was 48.3% (95% PI: 27.6% to 74.3%). These data indicate that a paratuberculosis control program for small ruminants is needed in Ontario.
    Original languageEnglish
    JournalCanadian Veterinary Journal-revue Veterinaire Canadienne
    Issue number2
    Pages (from-to)169-175
    Number of pages7
    Publication statusPublished - 2016

    Bibliographical note

    Use of this article is limited to a single copy for personal study. Anyone interested in obtaining reprints should contact the CVMA office ( for additional copies or permission to use this material elsewhere.


    • Animals
    • Bayes Theorem
    • Cross-Sectional Studies
    • Dairying
    • Enzyme-Linked Immunosorbent Assay
    • Feces
    • Goat Diseases
    • Goats
    • Mycobacterium avium subsp. paratuberculosis
    • Paratuberculosis
    • Polymerase Chain Reaction
    • Prevalence
    • Sheep
    • Sheep Diseases

    Cite this

    Bauman, C. A., Jones-Bitton, A., Menzies, P., Toft, N., Jansen, J., & Kelton, D. (2016). Prevalence of paratuberculosis in the dairy goat and dairy sheep industries in Ontario, Canada. Canadian Veterinary Journal-revue Veterinaire Canadienne, 57(2), 169-175.