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Animal Theme:

Quarter-based selective dry-cow treatment using on-farmdiagnostic tool

Expectation to decrease use of antibiotics at drying-off by 50 % while maintaining udder health.


  • With selectve dry cow therapy, infected cows may be treated with an antimicrobial only or with a combina-
    tion of antimicrobial and a teat sealant at the end of lactation, while uninfected cows receive only a teat
  •  Introducing such a treatment strategy will, of course, generate new costs, mainly costs for diagnostic tests
    and extra labor for sampling and conducting the test (for on-farm tests). On the other hand, less antimicrobials are used and costs for drugs and labor for administering drugs are saved.
  • Selective dry cow therapy is one potential strategy for achieving a more judicious use of antimicrobials.

Research team:

  • Jean-Philippe Roy (Principal Investigator, UMontréal)
  • Fidèle Kabera (MSc candidate, UMontréal)
  • Greg Keefe (collaborator, UPEI)
  • Simon Dufour (collaborator, UMontréal)
Scientific publications
Publication 1 : liens

Publication 2 : liens



Increase cows capacity to resist and destroy invading pathogens.

Aim to improve resistance through management, genetic selection, and enhancement of the immune system.

• Vaccine development
• New alternatives for modifying the immune response
• Selective treatment strategies

New alternatives to modify the immune response.

Vaccine development.

Selective treatment strategies

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Faculté de médecine vétérinaire
Université de Montréal

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