Use of a New Bulk-tank Milk Test to Measure Prevalence of Johne's Disease in Utah and the Intermountain West

Authors

  • D. J. Wilson Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322
  • K. Rood Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322
  • C. Wareham Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT 84322
  • T. M. Byrem Antel BioSystems, Inc., Lansing, MI 48909

DOI:

https://doi.org/10.21423/aabppro20104131

Keywords:

Johne's disease, herd-level prevalence, milk test, milk production loss, weight loss, diarrhea, culling

Abstract

The objectives were estimation of dairy herd-level prevalence of Johne's disease (JD) in Utah and parts of surrounding states, and estimation of the sensitivity of a single bulk-tank milk test for detection of JD. Johne's disease is a chronic intestinal disease of dairy cattle; effects can include milk production loss, weight loss, diarrhea, death, and increased culling risk. Most US dairy farms do not test for the disease, therefore prevalence is unknown.

Cover image of the 43rd Conference Proceedings: Two short-horned cattle grazing in a field, surrounded by a flock of egrets. Yellow background.

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Published

2010-08-19

Issue

2010

Section

Research Summaries 2