Livestock Heat Stress Prevention Systems

Heat stress is a major welfare and productivity issue in livestock farming globally, with climate change increasing its frequency and severity.

Key Facts

Cattle experience heat stress when the temperature-humidity index exceeds 72, well within summer norms in many regions
Heat-stressed dairy cows produce 10-25% less milk and show reduced fertility and increased disease risk
Shade, sprinkler cooling, and forced ventilation are the three most effective interventions for cattle
Pigs are particularly vulnerable to heat stress because they cannot sweat and have limited thermoregulatory capacity
Poultry mortality from heat stress can reach millions of birds annually during heat wave events

Welfare Considerations

Heat stress causes real suffering: panting, lethargy, reduced appetite, and in severe cases, organ failure and death. As global temperatures rise, livestock heat stress is becoming a more urgent welfare challenge. The economic costs of heat stress are often what motivate farmers to invest in cooling systems, and fortunately the welfare and economic imperatives align - preventing heat stress improves both animal welfare and farm viability. However, indoor intensive systems that concentrate animals in poorly ventilated spaces remain major risk environments.

What You Can Do

Support farms that invest in shade structures and cooling systems for livestock
Advocate for climate change policies that protect animal welfare
Learn about species-specific heat stress signs and thresholds
Support regulations requiring adequate shade and cooling in livestock facilities
Choose products from farms with documented heat stress management plans