On-Farm Antimicrobial Usage Project
Antimicrobial drug use can contribute to the emergence of antimicrobial drug-resistant organisms.
Scientifically sound data on antimicrobial use are vital for understanding the diseases that necessitate their use, the drivers of antibiotic resistance, and for assessing interventions designed to slow its spread.
In 2016, FDA awarded funds in the form of cooperative agreements to support pilot projects for the collection of farm-level antimicrobial use data in animal agriculture. These funded data collection efforts are intended to provide needed information on antimicrobial use practices in various animal production settings and to inform the development of long-term strategies for collecting and reporting such data in a sustainable and nationally representative manner.
Read more: Antimicrobial use data collection in animal agriculture
Susan J. Bright-Ponte
Zoonoses Public Health. 2020; 67(Suppl. 1): 1– 5. https://doi.org/10.1111/zph.12771
Latest Release
We are proud to release updated on-farm antimicrobial use data for U.S. turkeys, broiler chickens, and, for the first time, layer chickens. Data for turkeys and broiler chickens span years 2013-2021 and represent 70% and 80% of annual U.S. production respectively. Data for layer chickens span years 2016-2021 and represent 45% of annual U.S. table egg production.
Visit the commodity-specific pages for more details.
The papers for this project are under review with a scientific journal. To be notified of the papers' publication, please provide your email below.
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This project represents ongoing partnerships with the FDA, USDA-APHIS, U.S. Poultry & Egg Association, National Chicken Council, National Turkey Federation, United Egg Producers as well as layer, broiler chicken and turkey companies of the U.S.
Mindwalk Consulting Group, LLC manages the collection of antimicrobial use data for the broiler chicken, layer chicken, and turkey commodities. We collaborate with other groups on the collection of data for pigs and beef and dairy cattle.

Pigs

Dairy Cattle

Beef Cattle
Publications
Broiler Chickens
Estimates of on-farm antimicrobial usage in broiler chicken production in the United States, 2013–2017
Randall S. Singer, Leah J. Porter, Nora F. D. Schrag, Peter R. Davies, Michael D. Apley, Kathe Bjork
Zoonoses Public Health. 2020; 67(Suppl. 1): 22– 35. https://doi.org/10.1111/zph.12764
Layer Chickens
Coming soon!
Turkeys
Estimates of on-farm antimicrobial usage in turkey production in the United States, 2013–2017
Randall S. Singer, Leah J. Porter, Nora F. D. Schrag, Peter R. Davies, Michael D. Apley, Kathe Bjork
Zoonoses Public Health. 2020; 67(Suppl. 1): 36– 50. https://doi.org/10.1111/zph.12763
Pigs
Antimicrobial use in wean to market pigs in the United States assessed via voluntary sharing of proprietary data
Peter R. Davies, Randall S. Singer
Zoonoses Public Health. 2020; 67(Suppl. 1): 6– 21. https://doi.org/10.1111/zph.12760
Beef Cows
Antimicrobial use in 22 U.S. beef feedyards: 2016–2017
Katie J. Hope, Michael D. Apley, Nora F. D. Schrag, Brian V. Lubbers, Randall S. Singer
Zoonoses Public Health. 2020; 67(Suppl. 1): 94– 110. https://doi.org/10.1111/zph.12775Comparison of surveys and use records for quantifying medically important antimicrobial use in 18 U.S. beef feedyards
Katie J. Hope, Michael D. Apley, Nora F.D. Schrag, Brian V. Lubbers, Randall S. Singer
Zoonoses Public Health. 2020; 67(Suppl.1): 111– 123. https://doi.org/10.1111/zph.12778
Dairy Cows
Improving farm-level antimicrobial stewardship benchmarks by reporting antimicrobial use within the context of both the magnitude of disease pressure and the outcome of therapy
Nora F. D. Schrag, Sandra M. Godden, Randall S. Singer, Jason E. Lombard, John R. Wenz, David E. Amrine, Brian V. Lubbers, Michael D. Apley
Frontiers in Veterinary Science. 2022; 9. https://doi.org/10.3389/fvets.2022.1022557Antimicrobial use quantification in adult dairy cows – Part 1 – Standardized regimens as a method for describing antimicrobial use
Nora F. D. Schrag, Michael D. Apley, Sandra M. Godden, Brian V. Lubbers, Randall S. Singer
Zoonoses Public Health. 2020; 67(Suppl. 1): 51– 68. https://doi.org/10.1111/zph.12766Antimicrobial use quantification in adult dairy cows – Part 2 – Developing a foundation for pharmacoepidemiology by comparing measurement methods
Nora F.D. Schrag, Michael D. Apley, Sandra M. Godden, Randall S. Singer, Brian V. Lubbers
Zoonoses Public Health. 2020; 67(Suppl. 1): 69– 81. https://doi.org/10.1111/zph.12772Antimicrobial use quantification in adult dairy cows – Part 3 – Use measured by standardized regimens and grams on 29 dairies in the United States
Nora F. D. Schrag, Sandra M. Godden, Michael D. Apley, Randall S. Singer, Brian V. Lubbers
Zoonoses Public Health. 2020; 67(Suppl. 1): 82– 93. https://doi.org/10.1111/zph.12773
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