Western Canadian Animal Health Network Information Library

Infographics, reports, and other western Canadian animal health surveillance information

Back to search results

  • Bovine
  • Paratuberculosis (Johne's disease)
  • Bacteria
  • Canadian Cow-Calf Surveillance Network (C3SN);
  • Western Canadian Animal Health Network (WeCAHN)
  • Alberta;
  • British Columbia;
  • Manitoba;
  • Saskatchewan
  • Commercial, large-scale;
  • Smallholding
  • Article/ infographic
  • One Time

Johne’s Disease Risk Factors

Share:
Takeaways
• Older cows and skinnier cows or cows from herd having cows with signs of Johne’s disease, were more likely to test positive on an ELISA test.
• Herds having dairy cattle on-farm, or having cows showing signs of Johne’s disease on-farm were more likely to have a positive pooled PCR.
• Herds with a history of cows on-farm with clinical signs of Johne’s disease were more likely to test ELISA or PCR positive.

• These findings highlight the risks for producers in introducing animals from herds of unknown Johne’s status.