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For Immediate Release

July 9, 2013
Steve Merritt
Public Information Officer
Montana Department of Livestock

MDOL Seeks Comment on Proposed Rule Changes for Trich

The Montana Department of Livestock is seeking public comment on changes to its trichomoniasis program. The proposed changes are in response to feedback from producers, veterinarians and industry following a trichomoniasis outbreak in Fergus County and surrounding counties in 2011-2012.

“Based on our experience with the Fergus County investigation, we believe the proposed changes will better protect producers from a disease that can have a huge impact on profitability,” said Dr. Tahnee Szymanski, assistant state veterinarian.

The proposed changes focus on more structured management of affected herds, and include:

  • Changes to the quarantine process;
  • Requirement of an individual herd plan for affected herds;
  • Implementation of testing deadlines for herds involved in epidemiological investigations.

Szymanski said that the new rule will also improve compliance by including the entirety of trichomoniasis specific regulations in the penalties section.

Trichomoniasis is a venereal disease of cattle caused by a parasitic protozoan. The disease can be economically devastating to producers due to repeat breeding, extended calving, early and occasional late-term abortion, and a high percentage of open cows at pregnancy check.

The comment period on the proposed change runs through July 18. Comments may be submitted in writing to Christian Mackay, 301 N. Roberts St., Room 308, P.O. Box 202001, Helena, MT 59620-2001 or by fax to 406/444-1929, or by e-email to