Dr. Gregory Fraley

Professor of Biology
Profile photo of Dr. Gregory Fraley

Dr. Gregory Fraley started at Hope College in 2004. His primary responsibility is as a scientific researcher. He works with undergraduate and high school students to learn about science, and to learn to communicate with and ultimately to become scientists.

His second responsibility is as the Hope College pre-veterinary medicine adviser. He works with high school students and undergraduates to help them achieve their dreams and goals of becoming a veterinarian. He is also on the advisory board for the American Pre-Veterinary Medicine Association.

Gregory teaches in the biology department; he teaches the introductory biology courses, physiology, comparative anatomy, and other courses.

He is also the club adviser for Club Animalia, an on-campus student organization that provides a resource for students who are interested in careers that involve animals, including veterinary medicine. Club Animalia is a force of outreach and community service projects including Zoo-2-U, a Veterinary Science class with the Ottawa County 4H, Harbor Humane Society, Finals Stress Relief with therapy dogs, and numerous fundraising and charity events. Every year the club also attends the national American Pre-Veterinary Medical Association Annual Symposium.

AREAS OF Expertise

Gregory specializes in:

  • Behavioral neuroendocrinology
  • General and comparative physiology
  • Poultry welfare and well being

Specifically he is interested in how environmental changes alter brain chemistry and gene expression that regulates feeding, growth and reproductive performance. He studies basic neurobiological and endocrine pathways and relates them to housing conditions in the duck poultry industry.

He refers to his research as translational from benchtop to dinner table.


  • Ph.D., neuroscience, 1998, Washington State University
  • M.S., physiology with an emphasis on neuroscience, 1992, University of Maryland, College Park
  • B.S., animal science with an emphasis on physiology, 1989, University of Maryland, College Park

PostDoctoral Research

  • Senior Fellow, University of Washington, Department of Physiology and Biophysics and Department of Obstetrics and Gynecology, 2002–2004. Postdoctoral Mentor: Professor Robert Steiner,
  • Washington State University, Department of Veterinary and Comparative Anatomy, Pharmacology and Physiology, 1999–2002. Postdoctoral Mentor: Professor Sue Ritter.
  • University of California, Los Angeles, Brain Research Institute, 1998–1999. Postdoctoral Mentor: Professor Arthur P. Arnold.

Selected GRANTS

  • Co-PI: Introduction to Biology, New Core Course Development, Howard Hughes Medical Institute, $10,000, 2013
  • PI: To Feed or Breed: GnIH-3 Stimulates Food Intake in Rats, National Institutes of Health – National Institute of Diabetes and Digestive and Kidney Diseases, R15, $240,269, DK096541-01A1, 2013
  • PI: Analyses of Gait in Commercial Strains of Pekin Ducks. Great Lakes Association New Directions Initiative, $6,800, 2011
  • PI: Resveratrol Reduces Cell Injury Caused by Surgery Mimicking Deep Brain Stimulation, Campbell Foundation supplement, $5,500, 2011
  • PI: Resveratrol Reduces Cell Injury Caused by Surgery Mimicking Deep Brain Stimulation, Campbell Foundation grant, $50,000, 2011
  • PI: Identification of neutraceuticals for reducing traumatic brain injury, Howard Hughes Medical Institute grant, $12,500, 2010
  • PI: A New Focus in Research: Investigating the Neurobiology of and Treatments for Neurodegenerative Disease, Great Lakes College Association, $15,000, 2010
  • CO-PI: NSF REU site, Environmental Impacts on Biological Systems: From Molecules to Ecosystems, $250,835, 2008
  • Rehearsal vs. Performance: Salivary Cortisol Levels as a Physiological Response in Dancers, Howard Hughes Medical Institute Faculty Development Grant, $10,000, 2008
  • CO-PI: Supplement to MRI: Acquisition of Apotome/Fluorescence Microscope Imaging System for Enhanced Research in the Biological Sciences at Hope College, $13,715, 2007

Selected Awards

  • Duck Researcher of the Biennium Presentation, Poultry Science Association Annual Conference, 2015
  • Fraley Research Team awarded: Appreciation of significant contributions towards duck research and production in the poultry industry, 2015
  • “Teller” for Poultry Science Association Annual business meeting, 2012
  • Elected member, National Advisory Board for the American Pre-Veterinary Medical Association, 2012
  • Awards Committee Member, Society for Behavioral Neuroendocrinology, 2008–2010
  • Member, Organization Committee for West Michigan Regional Undergraduate Scientific Research Symposium, 2006–2012
  • Travel Award, Society for Behavioral Neuroendocrinology, 2003
  • Poncin Research Foundation Postdoctoral Fellowship Award, 2000–2002
  • Veterinary Gross Anatomy Teaching Award, 1998
  • Washington State University Graduate School Travel Award, 1995–96

Selected Presentations (Invited)

  • “Role of galanin-like peptide in the regulation of male typical sex behavior and erectile function in sexually experienced male rats,” European Neuropeptides Meeting, Aberdeen, Scotland, 2015
  • “Poultry welfare and wellbeing as it pertains to the Pekin Duck,” Ross University College of Veterinary Medicine, 2014
  • “Photoneuroendocrine System of the Pekin Duck,” Ross University College of Veterinary Medicine, 2014
  • “Estradiol – GALP interactions in the female rat brain,” Galanin Satellite Symposium, Society for Neuroscience Annual Meeting, San Diego, California, 2013
  • “Biological Bases for Poultry wellbeing in Pekin Ducks,” Grand Valley State University, Department of Biological Sciences, 2013
  • “Neuroprotective effects of a plant flavonoid, resveratrol,” West Michigan Undergraduate Scientific Research Conference, Van Andel Research Institute, 2012
  • “Descriptive analyses of the development of gait in Pekin ducks from hatch to market weight,” Maple Leaf Farms, Inc. Annual Duck Research Symposium, 2012
  • “Deep Brain Stimulation: Key Safety Issues,” “Non-pharmocological approaches for the treatment of Parkinson’s disease,” Satellite Meeting, Society for Neuroscience Annual Meeting, Washington, D.C., 2011
  • “Environmental Impacts on the Neural Regulation of Reproduction in the Pekin Duck,” Maple Leaf Farms, Inc. Annual Duck Research Symposium, Warsaw, Indiana, 2011
  • “Environmental Impacts on the Neural Regulation of Reproduction in the Pekin Duck,” New York College of Osteopathic Medicine, 2011

Selected Publications

  • Increased water contamination and grow-out Pekin duck mortality when raised with water troughs compared to pin-metered water lines using a United States management system,” with A. Schenk, A. Porter, E. Alenciks, K. Frazier, A. Meelker, S.M. Fraley and A. Best, Poultry Science, 95(4), 2016
  • “Effects of different wavelengths of light on the biology, behavior, and production of grow-out Pekin ducks,” with C.L. Campbell, S. Colton, R. Haas, M. Rice, A. Porter, A. Schenk, A. Meelker and S.M. Fraley, Poultry Science. 94(8), 2015
  • “Characterization and comparison of Pekin duck drinking and preening behaviors when housed on raised plastic flooring vs. pine litter flooring,” with M. Rice, A. Meelker and S.M. Fraley, Journal of Applied Poultry Research, 23(4), 2014
  • “The Effects of Environmental Enrichment Devices on Feather Picking in Commercially housed Pekin ducks,” with S. Colton, Poultry Science, 93(9), 2014
  • “Descriptive Analyses of Gait Characteristics in Pekin Ducks from Hatch to Market Weight,” with C.L. Campbell, S. Colton, A.L. Porter, R. Haas, E. Gerometta, A. Lindberg and S.M. Fraley, Journal of Applied Poultry Research, 23(2), 2014
  • “Influence of plastic slatted floors compared with pine shaving litter on Pekin Duck condition during the summer months,” with S.M. Fraley, D.M. Karcher, M.M. Makagon and M.S. Lilburn, Poultry Science, 92(7), 2013
  • “Influence of Raised Plastic (Slatted) Floors Compared to Pine Shaving Litter on Pekin Duck Condition,” with D.M. Karcher, M. Makagon, S.M. Fraley and M. Lilburn, Poultry Science, 92(3), 2013
  • “Distribution and sequence of Gonadotropin-inhibitory hormone and its potential role as a molecular link between feeding and reproductive systems in the Pekin duck (Anas platyrhynchos domestica),” with E. Coombs, E. Gerometta, S. Colton, P.J. Sharp, Q. Li and I.J. Clarke, General and Comparative Endocrinology, 184, 2013
  • “Effects of alarin on food intake, body weight and luteinizing hormone secretion in male mice,” with E. Leathley, N. Lundy, E. Chheng, I. King, B. Kofler, Neuropeptides, 46(2), 2013
  • “Alarin 6-25Cys antagonizes alarin-specific effects on food intake and luteinizing hormone secretion,” with E. Leathley, A. Nickols, E. Gerometta, E. Coombs, S. Colton, S. Gallemore, A. Lindberg and B. Kofler, Neuropeptides. 47(1), 2013

Invited Reviews and Book Chapters

  • “Galanin-like peptide (GALP) is a hypothalamic regulator of energy homeostasis and reproduction,” with C. Lawrence, Frontiers in Neuroendocrinology, 102, 2011
  • “Galanin-like Peptide (GALP): Neural Regulator of Energy Homeostasis and Reproduction,” with C. Lawrence, Galanin. Experimenta Supplementum, 102, ed. T. Hökfelt, T, Springer Verlag Berlin Heidelberg, 2011

Outside of the College

Gregory is a farmer. He and his wife raise Scottish highland beef cows. Otherwise, his work pretty much consumes his life.

Profile photo of Dr. Gregory Fraley
Dr. Gregory Fraley

Phone Number616.395.7306

A map showing the location for Dr. Gregory Fraley