Lighting programs in turkey production affect growth, behaviour, welfare, and health. Inappropriate light intensity, duration, and spectrum can cause fear, injury, and chronic stress in birds adapted to complex natural light environments.
Key Facts
Commercial turkeys are typically raised under continuous or near-continuous artificial lighting to stimulate feeding
Low light intensity is used to reduce activity and aggression but also suppresses natural behaviour
Turkeys have four types of cone photoreceptors and perceive UV light invisible to humans
UV access enables natural preening, social recognition, and thermoregulation behaviour
Enriched lighting programs with rest periods, higher intensity, and UV wavelengths improve welfare outcomes
Rapid growth rates in commercial breeds create cardiovascular and skeletal stress exacerbated by poor lighting
Higher light intensity is associated with increased fearfulness and injurious pecking in some studies
Welfare Considerations
Constant low-intensity lighting suppresses the natural activity rhythms of turkeys, reducing foraging, social interaction, and exploratory behaviour. This monotonous environment contributes to frustration and redirected pecking. Providing circadian lighting cycles with clear day-night periods supports normal behaviour and reduces chronic stress. UV lighting enables turkeys to express natural preening and social recognition behaviours not visible under standard artificial light. Welfare-conscious producers are adopting lighting programs that balance growth efficiency with behavioural opportunity — demonstrating that lighting is a low-cost, high-impact lever for welfare improvement in turkey production.
What You Can Do
Choose turkey products from welfare-certified farms with documented lighting standards
Advocate for circadian lighting requirements to be included in commercial turkey welfare regulations
Support research into optimal lighting spectra and intensity for turkey welfare
Reduce turkey consumption or choose plant-based alternatives to reduce demand on intensive production