Livestock

Heat Stress Welfare in Intensive Turkey Production

Turkeys in intensive production systems are highly susceptible to heat stress, which causes significant welfare problems and production losses worldwide.

Key Facts

Commercial turkeys have been selectively bred for rapid growth, which increases metabolic heat production and heat stress vulnerability
Temperatures above 27 degrees Celsius cause measurable welfare impacts including panting, wing-spreading and reduced activity in turkeys
Heat stress mortality events can kill thousands of birds per shed during extreme weather episodes
Broiler turkeys and breeding hens differ substantially in heat tolerance, requiring species-specific management

Welfare Considerations

Heat stress in turkeys causes progressive welfare deterioration: initial panting progresses to open-mouth breathing, prostration and death in severe cases. Chronic sublethal heat stress suppresses immune function, increases disease susceptibility and impairs welfare without visible acute signs. Ventilation system design, stocking density management, water provision and feed timing adjustments are all critical welfare interventions in warm climates.

What You Can Do

Require minimum ventilation standards and emergency cooling systems in turkey sheds
Reduce stocking density during summer months to lower heat load
Ensure continuous access to cool, fresh water — consumption increases 3-4x during heat stress
Monitor weather forecasts and implement heat stress action plans before temperatures peak