Impact of Two Coliform Mastitis Immunization Schedules on Immune Response, Milk Yield, Intramammary Infection and Dry Matter Feed Intake in Holstein Dairy Cattle

Authors

  • Christina S. Petersson Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
  • Ken E. Leslie Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
  • David F. Kelton Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
  • Bonnie A. Mallard Department of Pathobiology, University of Guelph, Guelph, Ontario, Canada
  • Tera M. Osborne Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
  • Angela M. Fairfield Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada

DOI:

https://doi.org/10.21423/aabppro20035304

Keywords:

coliform mastitis, vaccination protocols, dry matter intake, milk bacteriological status, immune response

Abstract

Although coliform mastitis immunization programs are widely implemented, several questions concerning the proper administration schedule remain unanswered. Thus, a comparison of two vaccination protocols was conducted to determine the effects on immune response, milk production, milk bacteriological status and dry matter intake (DMI).

Cover image of the 36th Conference Proceedings: Holstein cows standing in a row at a fence. One cow has put her head through the fence and is curiously inspecting a pile of hay. Yellow background.

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Published

2003-09-18

Issue

2003

Section

Research Summaries - Dairy I

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