Gregory S. Fraley
Agricultural and Biological Sciences · Purdue University West Lafayette
Publications
113
Citations
3,681
Est. group size
~9
Recurring co-author estimate
Active years
34
Publishing since 1993
Gregory S. Fraley studies the physiology, behavior, and welfare of poultry, especially Pekin ducks and laying hens, focusing on how factors like lighting, diet, heat stress, and housing conditions affect brain chemistry (such as serotonin and dopamine), stress hormones, growth, and egg production. His work combines animal welfare assessment with neuroendocrinology (the study of how the brain and hormones interact) to understand and improve commercial poultry production practices.
Publication output has grown substantially over the last decade, rising from about 1-4 papers per year before 2021 to 11-13 papers per year in 2023-2025.
Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026
- Evaluation of Pulsed Alternating Wavelength System Lighting on the Welfare Quality and Serotonin Turnover of Commercial Laying Hens Throughout a Lay Cycle
Animals · 2026
- Pulsed alternating wavelength system lighting does not negatively impact production or welfare but reduces dopamine activity and may improve bone growth in grow-out Pekin ducks
Poultry Science · 2025
- Age effects on measurements of hypothalamic-pituitary-adrenal axis activation in laying hens
Poultry Science · 2025
- Effects of semi-open water and non-water enrichment on welfare, production, behavior, and microbial exposure of grow-out Pekin ducks
Poultry Science · 2025
- High-carotenoid orange corn diet altered serotonin and dopamine activity in the brain while heat stress altered total antioxidant capacity in a sex dependent manner in Pekin ducks
Poultry Science · 2025
- Orange corn diet modulates Pekin duck cecal neurochemistry under normal and heat stress conditions
Poultry Science · 2025
- Orange corn diet decreased serum corticosterone and improved gait, egg production, egg quality and fertility of breeder Pekin ducks exposed to heat stress
Poultry Science · 2025
- Parental intake of high-carotenoid orange corn diet alleviated glucocorticoid and fear response but not growth in F1 Pekin ducks
Poultry Science · 2025
- Evaluation of Alterations in Nutrient Utilization and Intestinal Health in Response to Heat Stress in Pekin Ducks Based on a Pair-Feeding Experimental Design
Animals · 2025
- Enhancing scientific identity and persistence through a poultry-focused course-based undergraduate research experience
Poultry Science · 2025
- Research and innovation perspectives: poultry welfare in 2050
Poultry Science · 2025
- Effects of auditory enrichment on Pekin duck production and welfare
Poultry Science · 2025
- Preening cups in duck housing are associated with an increase in central dopamine activity that suggests a negative affective state
Poultry Science · 2024
- Photostimulation decreases fearfulness, but improves growth performance and egg quality of breeder Pekin ducks
Poultry Science · 2024
- Vocalizations of the Pekin duck (Anas platyrhynchos domesticus): how stimuli, sex, and social groups affect their vocal repertoire
Poultry Science · 2024
- Poultry Science×33
- Animals×6
- Frontiers in Physiology×4
- Neuropeptides×2
- The Journal of Applied Poultry Research×2
- Jung Yeol Sung
Agricultural and Biological Sciences · Purdue University West Lafayette
- Darryl Ragland
Agricultural and Biological Sciences · Purdue University West Lafayette
- B. T. Richert
Agricultural and Biological Sciences · Purdue University West Lafayette
- Jacob A Richert
Agricultural and Biological Sciences · Purdue University West Lafayette
- Marisa A. Erasmus
Agricultural and Biological Sciences · Purdue University West Lafayette
This profile was generated automatically from public scholarly data (OpenAlex). Group size and activity levels are estimates derived from co-authorship patterns.
Last updated Jul 20, 2026.
Claim or correct this profile