This month representatives from the USDA National Agricultural Statistics Service will be contacting dairy producers in 17 states to ask them to take part in the 2007 National Animal Health Monitoring System Dairy study.  The voluntary study will focus on health and health management issues in the dairy industry. It is the fourth national study of the U.S. dairy industry conducted by NAHMS.

During the month of January, randomly selected producers in 17 states, California, Idaho, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, New Mexico, New York, Ohio, Pennsylvania, Texas, Vermont, Virginia, Washington and Wisconsin, will be asked to participate in the study and complete an on-site questionnaire. These states represent 79.3 percent of U.S. dairy herds and 82.0 percent of U.S. dairy cows.

Based on questionnaire results, eligible producers will be asked to participate in the second phase of the study.  Producers who choose to continue in the study will be visited by veterinary medical officers and/or animal health technicians who will administer a questionnaire and take biological and environmental samples between February 26 and April 30. Producers will receive testing results at the conclusion of the study.  

Participation in all NAHMS studies is voluntary. And because NAHMS’ studies rely on voluntary participation, the privacy of every participant is protected. Only the data-collector knows the identity of the respondent. No name or address is ever recorded in any database. No data will be reported on any individual or in a manner that would allow the identification of an individual.

The dairy 2007 study will:

  • Describe trends in dairy cattle health and management practices.
  • Evaluate management factors related to cow comfort and removal rates.
  • Describe dairy calf health and nutrition from birth to weaning and evaluate heifer disease prevention practices.
  • Estimate the prevalence of herds infected with bovine viral diarrhea virus (BVD)
  • Describe current milking procedures and estimate the prevalence of contagious mastitis pathogens.
  • Estimate the herd-level prevalence and associated costs of Mycobacterium paratuberculosis.
  • Describe current biosecurity practices and determine producer motivation for implementing or not implementing biosecurity practices.
  • Determine the prevalence of specific food safety pathogens and describe antimicrobial resistance patterns.

For more information about the study, contact:


2150 Centre Avenue
Fort Collins, CO80526-8117. Or call (970)494.7000. You also can visit the NAHMS on the Web at:

To read an information sheet (pdf format) about the study, go to: