National Animal Health Monitoring System (NAHMS)

Animal and Plant Health Inspection Service

NAHMS conducts national studies that provide essential information on livestock and poultry health and management to decision makers, including producers, researchers, and policymakers. National estimates generated from a NAHMS study are used to provide up-to-date and trend information needed to monitor animal health, support trade decisions, assess research and product development needs, answer questions for consumers, and set policy.

United States Department of Agriculture

Snapshot■ Cross-sectional studies

■ Periodic examination

Animal Health Trends■ Periodic snapshots enable trend analysis

Office of Management and Budget (OMB) Sanctioned

Legislative and Public Affairs (LPA) Designed Products

Probability/Inference Based Study Design

1) NAHMS Unit

▪ Study design ▪ Sample allocation ▪ Questionnaire development ▪ Training ▪ Promotional materials

2) National Agricultural Statistics Service (NASS) ▪ Sample selection▪ First contact▪ Data collection▪ Informed consent▪ Data entry & validation▪ Data file and weights

3) VS Field Force

▪ Producer consent & agreement ▪ Data collection ▪ Specimen collection

4) NAHMS Unit

▪ Validation ▪ Weighting ▪ Analysis ▪ Summary ▪ Dissemination

Questionnaires

▪ NASS Enumerators▪ VS Field Force▪ Clinical evaluation records▪ Producer evaluation

Specimens ▪ Blood/Feces/Milk▪ Environment▪ Ear notches▪ Feed/Water▪ Tonsil swabs

Labs

▪ NVSL▪ ARS▪ University and private labs

Informational Products

▪ Descriptive reports▪ Interpretive reports▪ Informational sheets▪ Scientific manuscripts▪ Industry presentations▪ Web-accessible

Information Dissemination

▪ Stakeholder discussions▪ Linkages to consumers▪ Partnerships with: media, extension services, researchers, industry, and academia

Information Product Usage

▪ Policy decisions▪ Producer education▪ Research▪ Industry needs▪ Trade

Animal and Plant Health Inspection Service

NAHMS Study Development Cycle

NAHMS Study History

1990

1990, 1995, 2000, 2006, 2007, 2012, 2020 Swine1992, 1996, 2002, 2007, 2011, 2014 Dairy1991, 1995, 2000, 2005, 2010, 2016, 2021 Cattle/Calves Death Loss1994, 1995, 1999, 2004, 2009, 2015, 2020 Sheep/Lamb Death Loss1999, 2004, 2007, 2010, 2013 Poultry1993, 1997, 2008, 2017 Beef Cow/Calf1994, 1999, 2011, 2020 Beef Feedlot1996, 2001, 2011 Sheep1997, 2003, 2010 Aquaculture1998, 2005, 2015 Equine2009, 2011, 2012 Small-Scale Operations2009, 2019 Goat2014 Bison2014 Cervid2016, 2021 Goat/Kid Death Loss2017 Antimicrobial Use

For more information, please visit: https://www.aphis.usda.gov/nahms

Needs Assessment

Study Design

Study ImplementationStudy Analysis

Information Dissemination

Setting specific focus & specifications

Determine sampling & data collection methods

Training, data collection, data capture & validation

Descriptive & inferential analysis

Reports, informational sheets, peer-reviewed

publications, presentations