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Light wavelength and duration modulate visfatin, chemerin and oxidative status in broilers
Ece Koç1, Mehmet Kaya2, Evrim Dereli Fidan2
1Department of Physiology, Faculty of Veterinary Medicine, Aydın Adnan Menderes University, Aydın, 09020, Türkiye.
Domestic Animal Endocrinology
|July 17, 2026
Summary
Green light and intermittent lighting strategies significantly impact broiler physiology and growth. Intermittent green light shows promise for enhancing broiler weight and modulating oxidative stress markers in intensive farming.
Area of Science:
- Animal Science
- Poultry Science
- Environmental Physiology
Background:
- Optimizing broiler production involves understanding environmental factors like lighting.
- Adipokines, stress biomarkers, and oxidative status are key indicators of broiler health and performance.
Purpose of the Study:
- To investigate the combined effects of light color (white vs. green) and photoperiod (continuous vs. intermittent) on broiler adipokine responses, stress biomarkers, growth, and oxidative status.
- To determine the efficacy of specific lighting strategies for improving broiler welfare and productivity.
Main Methods:
- A 2x2 factorial design experiment with 288 Ross 308 broilers over 42 days.
- Evaluated body weight, feed intake, feed conversion ratio (FCR), serum biomarkers, and tissue oxidative stress markers (SOD, GSH).
Main Results:
- Green light reduced serum visfatin and chemerin. Intermittent lighting decreased corticosterone and HSP70 but increased creatine kinase.
- Intermittent green lighting resulted in the highest final body weight and modulated renal oxidative status (increased SOD, decreased GSH).
- Overall FCR was not significantly affected, but growth performance and physiological markers showed significant responses to light treatments.
Conclusions:
- Light wavelength and photoperiod interact to influence metabolic, endocrine, and oxidative responses in broilers.
- Intermittent green lighting presents a practical approach for enhancing broiler growth and physiological regulation in intensive rearing systems.
