Scientific Advisory Committee

Nearly 20 years ago, in 1999, UEP convened an independent, unpaid Scientific Advisory Committee to evaluate egg-laying hen well-being standards, review existing research, conduct new research and recommend changes for egg farms. The first recommendations from this advisory committee became the foundation for UEP Certified. The advisory committee continues today, for ongoing review of new research and modern egg farm standards.

Committee Members

Patricia Y. Hester, Ph.D., Chair

Professor of Animal Sciences

Purdue University

Joy A. Mench, PhD, Vice Chair

Professor of Animal Science

University of California-Davis

Cia Johnson, MS, DVM

Director Animal Welfare Division

American Veterinary Medical Association

Jose A. Linares, DVM, DACPV, DACAW

Manager of Veterinarian Services

Ceva Animal Health

Suzanne T. Millman, Ph.D.

Associate Professor, College of Vet Med

Iowa State University

Ruth C. Newberry, Ph.D.

Professor of Ethology, Animal Sciences

Norwegian University of Life Sciences

Janice C. Swanson, PhD

Chairperson & Professor,

Animal Behavior and Welfare

Michigan State University

Paul B. Thompson, Ph.D.

Distinguished Professor

Michigan State University

Tina M. Widowski, Ph.D.

Professor & Research Chair in Poultry Welfare

University of Guelph


Don Conner, PhD

Food Safety Liaison

Professor & Head, Poultry Science

Auburn University



Hongwei Xin, Ph.D.

Environmental Liaison

Distinguished Professor, Iowa State University

Director, Egg Industry Center


Jeffrey D. Armstrong, Ph.D.


California Polytechnic State University