Relationship between Neospora caninum Seropositivity and Udder Health in Lactating Dairy Cows

Authors

  • T. Duffield Department of Population Medicine, Ontario Veterinary College, University of Guelph, Canada
  • G. Wideman Department of Population Medicine, Ontario Veterinary College, University of Guelph, Canada
  • D. Kelton Department of Population Medicine, Ontario Veterinary College, University of Guelph, Canada
  • A. Peregrine Department of Pathobiology, Ontario Veterinary College, University of Guelph, Canada
  • G. Cramer Department of Population Medicine, Ontario Veterinary College, University of Guelph, Canada
  • S. Hietala California Animal Health & Food Safety Laboratory System, University of California, Davis, CA

DOI:

https://doi.org/10.21423/aabppro20015240

Keywords:

Neospora caninum, economic losses, udder health parameter, somatic cell count

Abstract

Neospora caninum is the most common infectious cause of abortion in Ontario dairy cattle. Most studies to assess the economic impact of N. caninum have identified losses associated with reproduction, milk production or culling. Few studies have investigated any potential influence of N. caninum serological status on udder health parameters. One European study reported an association between cows having moderate (200,000 to 400,000 cells/ml) somatic cell counts and N. caninum infection. The objective of this study was to determine if N. caninum serological status was associated with linear score or risk of elevated linear score in Ontario Holstein dairy cows.

Cover image of the 34th Conference Proceedings: Four men on horseback lead a single cow through a pen. Yellow background.

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Published

2001-09-13

Issue

2001

Section

Posters

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