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National Animal Health Monitoring System

Current and Ongoing Projects

The National Animal Health Monitoring System (NAHMS) Program Unit conducts national studies on the health and health management of United States domestic livestock and poultry populations. More about NAHMS.

Recent Releases

infographic icon Beef 2017 Infographic - Management of U.S. Cow-Calf Operations at a Glance   (October 2020)

survey icon NAHMS Bison 2022 Needs Assessment Survey (September 2020)

interactive icon NAHMS Bison 2014 StoryMap - Ranched Bison in the US (July 2020)

launch sheet icon NAHMS Swine 2021 Large Enterprise - Launch Sheet [English]   [Español] (July 2020)

launch sheet icon NAHMS Swine 2021 Small Enterprise - Launch Sheet [English]   [Español] (July 2020)

launch sheet icon NAHMS Health Management on U.S. Feedlots 2021 - Launch Sheet(July 2020)

report icon Beef 2017 Report 1: Beef Cow-calf Management Practices in the United States, 2017 (May 2020)

Commodity Pages 


NAHMS is committed to protecting the confidentiality of the information provided by participants in NAHMS studies. Only those collecting the data know the identity of respondents. No name or contact information is associated with individual data, and no data are reported in a way that could reveal the identity of a participant, as data are presented only in an aggregate manner.

To further protect respondents’ information, NAHMS applied for, and in March 2012 received, recognition as a statistical unit under the Confidential Information Protection and Statistical Efficiency Act (CIPSEA). Enacted in 2002, CIPSEA provides a way for Federal agencies to collect statistical information and protect its confidentiality using the force of law.

The specific data protections given to a NAHMS study participant's data is described in detail in informed consent forms administered during the study. Additional information regarding NAHMS' CIPSEA status as well as annual CIPSEA reports are available below.


Mailing Address:
National Animal Health Monitoring System (NAHMS)
2150 Centre Ave, Building B, Mail Stop 2E7
Fort Collins, CO 80526-8117

Email: For questions regarding NAHMS studies or requests for special tabulations, reports, or graphs in formats useable for lectures or presentations please email NAHMS@usda.gov.

Associate Director: Amy Delgado, MS DVM PhD
email: Amy.H.Delgado@usda.gov

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