Impact of Two Coliform Mastitis Vaccination Schedules on Milk Yield, Dry Matter Feed Intake and Intramammary Infections of Holstein Dairy Cattle

Authors

  • Christina S. Petersson Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Ken E. Leslie Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • David F. Kelton Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Bonnie A. Mallard Department of Pathobiology University of Guelph, Guelph, Ontario, Canada N1G 2W1

DOI:

https://doi.org/10.21423/aabppro20025080

Keywords:

coliform mastitis, administration schedule, vaccine program, dry matter feed intake, bacteriological status

Abstract

Although coliform mastitis vaccine programs are widely implemented and relatively successful, several questions remain unanswered regarding proper administration schedule. In a comparison of two vaccination protocols, effects on dry matter feed intake (DMI), daily milk production and milk bacteriological status of fresh cows were analyzed.

Cover image of the 35th Conference Proceedings: Holstein cows standing in a row at a fence. A small group of cattle are bunched together in a pen. Yellow background.

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Published

2002-09-26

Issue

2002

Section

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