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Research & Articles

The RuFaS model is built on peer-reviewed research to deliver a dynamic model that is reliable and agile to changing conditions and needs. Additionally, RuFaS has created opportunities to contribute to important research outcomes that we hope will serve the scientific community too.

Follow RuFaS on LinkedIn to stay up to date on model developments, new resources, and opportunities to collaborate with the RuFaS community.

Article

FARM-ES dairy stewardship program revises evaluation tool

2026
Brownfield Ag News

Nicole Ayache with the National Milk Producers Federation says the Farmers Assuring Responsible Management Environmental Stewardship,...

Article

FARM Environmental Stewardship updates tool for dairy

2026
Feedstuffs

Version 3 evaluation tool includes latest science for use by dairy farmers to estimate emissions and improve sustainability.

Article

Predicting outcomes before deciding

2026
Hoard's Dairyman

Every decision on your farm carries risk. Whether it's changing a ration, investing in new technology, or adjusting manure management, you're making the best call with the information you have.

Article

Setting the Pace for Progress: A Unified Approach to Dairy Sustainability

2025
Dairy Herd

Through collaboration and sustained effort, the dairy industry positions itself at the forefront of sustainable agriculture,...

Article

Dairy Leaders Share Progress, Priorities at Fall Alliance Meeting

2025
Oklahoma Farm Report

ANAHEIM, Calif. – More than 270 leaders from across the dairy value chain gathered Nov. 18 for the 2025 Dairy Sustainability Alliance® Fall...

Article

New Study: Genetic Selection with Dairy Wellness Profit Index® Supports Measurable Productivity Gains for Dairy Producers

2025
The Cattle Site

Selecting for health, fertility and production traits helpslead to healthier, more productive cows.

Article

New Study: Genetic Selection with Dairy Wellness Profit Index® Supports Measurable Productivity Gains for Dairy Producers

2025
Oklahoma Farm Report

A newly published study from Zoetis and Dairy Management Inc. (DMI) provides compelling evidence that genetic selection using the Dairy...

Article

Dairy farm modeling tool boosts sustainability, decision-making

2025
Cornell Chronicle

The Ruminant Farm Systems modeling tool is available for open-source collaboration, and is available, free of charge, to all U.S. dairy...

Scientific Publication

Transdisciplinary model-based systems engineering in the development of the Ruminant Farm Systems model

2025
Hu, H., Whitcomb, C. A., Ploetz, T. E., & Reed, K. F.

This study adopts a transdisciplinary model-based systems engineering (MBSE) approach to support the development of the Ruminant Farm Systems (RuFaS) model, an advanced on …

Scientific Publication

Invited Review: The Ruminant Farm Systems (RuFaS) model is a platform to support future research and actions for sustainable dairy farming

2025
Reed, K. F., Tricarico, J. M., HekmatiAthar, S., Waddell, J. S., Andreen, D. A., Briggs, K. R., Liu, A., Tomlinson, N. D., Adamchick, J., Cabrera, V. E., Hu, H., Gong, Y., Graef, G. M., Villalobos-Barquero, M. R., Oliver, J. P., Nydam, D. V., Ayache, N., & McClintock, L.

Abstract The Ruminant Farm Systems (RuFaS) model is an open-source, modular, whole-farm simulation platform designed to support interdisciplinary research, innovation, and …

Scientific Publication

Advancing dairy farm simulations: A two-step approach for tailored lactation curve estimation and its systemic impacts

2025
Gong, Y., Hu, H., Reed, K. F., & Cabrera, V. E.

Lactation curve models are a foundational component of dairy farm simulation models because they support prediction of individual animal milk production over time. For farm …

Article

National Dairy FARM Program releases new versions

2024
Feedstuffs

New versions of the Animal Care and Workforce Development Programs update and improve agriculture-leading benchmarks for animal care and...

Article

Animal health is integral to secure food systems. Is the EU ready for the challenges ahead?

2024
Euractiv

The global population is projected to reach nearly 10 billion by 2050. To meet this growing demand, animal protein production must increase...

Scientific Publication

Simulating diverse dairy management systems with the RuFaS model

2024
Reed, K. F., Adamchick, J. S., Briggs, K. R., & Nydam, D. V.

Dairy industry progress towards sustainable production practices requires methods for whole farm environmental footprinting to support both on-farm decisionmaking and inventory …

Scientific Publication

A stochastic animal life cycle simulation model for a whole dairy farm system model: Assessing the value of combined heifer and lactating dairy cow reproductive management programs

2023
Li, M., Reed, K. F., Lauber, M. R., Fricke, P. M., & Cabrera, V. E.

This analysis introduces a stochastic herd simulation model and evaluates the estimated reproductive and economic performance of combinations of reproductive management …

Scientific Publication

A time series analysis of milk productivity in US dairy states

2023
Li, M., Reed, K. F., & Cabrera, V. E.

As US dairy cow production evolves, it is important to characterize trends and seasonal patterns to project amounts and fluctuations in milk and milk components by states or …

Conference Proceedings

Comparison of predicted nutritional requirements of two feeding systems for dairy cattle implemented in a Monte-Carlo simulation model of herd dynamics

2023
Waddell, J. C., Cabezas-Garcia, E., & Reed, K. F.,

There is increased interest in precision-feeding systems that account for individual-animal variation and temporal dairy herd dynamics to increase feed-efficiency and reduce …

Scientific Publication

Investigating the effect of temporal, geographic, and management factors on US Holstein lactation curve parameters

2022
Li, M., Rosa, G. J. M., Reed, K. F., & Cabrera, V. E.

We fit the Wood's lactation model to an extensive database of test-day milk production records of US Holstein cows to obtain lactation-specific parameter estimates and …

Scientific Publication

The application of nonlinear programming on ration formulation for dairy cattle

2022
Li, J., Kebreab, E., You, F., Fadel, J. G., Hansen, T. L., VanKerkhove, C., & Reed, K. F.

The objective of this study was to compare the application of iterative linear programming (iteLP), sequential quadratic programming (SQP), and mixed-integer nonlinear …

Conference Proceedings

The Ruminant Farm Systems Model: A decision-support tool for whole farm efficiency and sustainability

2022
Reed, K. F.

Sustainable dairy production requires methods to quantify the environmental footprint of dairy farms that can inform management decisions. Impact inventories can provide some …

Scientific Publication

The ruminant farm systems animal module: A biophysical description of animal management

2021
Hansen, T. L., Li, M., Li, J., Vankerhove, C. J., Sotirova, M. A., Tricarico, J. M., Cabrera, V. E., Kebreab., E., & Reed, K. F.

Consumers are increasingly concerned about the sustainable production of food, leading producers and scientists to evaluate farming practices that preserve …

Conference Proceedings

Application of the Ruminant Farm Systems model (RuFaS) to assess the environmental impact of reproductive strategies in dairy farms: greenhouse gas

2021
Reed, K., F., Nydam, D. V., Li, M., & Cabrera, V.

Dairy producers are challenged to meet goals to produce milk in an economically viable and socially acceptable way that minimizes environmental footprints and maintains cow health …

Article

Next-generation whole-farm dairy sustainability analysis: The Ruminant Farm Systems Model

2020
Ag Proud

Understanding and awareness of how agricultural practices impact our environment, natural resource use, and climate is growing.

Scientific Publication

A new modeling environment for integrated dairy system management

2019
Kebreab, E., Reed, K. F., Cabrera, V. E., Vadas, P. A., Thoma, G., & Tricarico, J. M.

new modeling environment for integrated dairy system management | Animal Frontiers | Oxford Academic Skip to Main Content Advertisement Oxford Academic Journals Books Search Menu …

Conference Proceedings

RuFaS: A next generation tool to support environmentally integrated dairy farm management

2019
Motew, M., & Reed, K.F.

US dairy production provides vital food and nutrition to people, yet comes with significant environmental costs. Efficient use of nitrogen (N) on dairy farms remains a pressing concern …

Conference Proceedings

Modeling the nutrition-environment nexus: Completing the cycle

2018
Reed, K. F.

Dairy farms are complex, interconnected systems. Nutrient management planning requires consideration of how the impacts of management decisions percolate through the entire …

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