Neospora caninum

Influence on 305-day Milk Production in Eastern Canadian Herds

Authors

  • Greg Keefe Atlantic Veterinary College, Charlottetown, PEI CANADA
  • John VanLeeuwen Atlantic Veterinary College, Charlottetown, PEI CANADA

DOI:

https://doi.org/10.21423/aabppro20005392

Keywords:

Neospora caninum, abortion, abortion storms, serologic status, production

Abstract

Neospora caninum, a protozoal parasite, is a common cause of abortion in dairy cattle in North America. Cows that become infected with Neospora appear to remain infected for life. Infection is acquired through vertical transmission (dam to offspring in utero) or horizontal transmission and leads to endemic abortion, with occasional herds reporting abortion storms or outbreaks.2 In addition to the reproductive consequences of infection, in one study of a single large herd, seropositive primiparous animals produced 3.6 lbs less fat-corrected milk than did their seronegative primiparous herd mates.3 The objective of this study was to examined the effect of serologic status for Neospora on production in a large random sample of cattle in eastern Canada.

Cover image of the 33rd Conference Proceedings: Cattle and calves standing in a field of wildflowers, gazing curiously at the photographer. Yellow background.

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Published

2000-09-21

Issue

2000

Section

Research Summaries 2