Livestock Welfare in Heat Stress: Adaptation and Management

Heat stress causes significant welfare impacts in livestock including reduced productivity, immune suppression, and in extreme cases death, and climate change is increasing its frequency and severity.

Key Facts

Cattle and pigs are particularly susceptible to heat stress as they generate substantial metabolic heat
Heat stress causes reduced feed intake, altered rumination, and elevated respiratory rate in affected animals
Pregnant and lactating animals are at highest risk as they generate additional metabolic heat
Evaporative cooling, shade provision, and access to water can significantly reduce heat stress impacts
European livestock farming is facing increasing heat stress risk as summer temperatures rise with climate change

Welfare Considerations

Heat stress causes genuine suffering - animals show behavioural thermoregulation attempts including seeking shade, reducing activity, and panting, but in intensive housing systems these strategies are often not available. Prolonged heat stress suppresses immunity, increases disease susceptibility, and in extremes causes hyperthermia and death. The welfare impact of heat stress will increase with climate change, making investment in ventilation systems, shade structures, and cool water access increasingly important welfare requirements rather than optional improvements.

What You Can Do

Support welfare standards that require appropriate ventilation and cooling provision in livestock housing
Advocate for climate-smart livestock welfare requirements that anticipate increasing heat stress frequency
Engage with farmers about heat stress monitoring and early intervention protocols
Support research into livestock breeds with greater heat tolerance for future climate scenarios
Choose livestock products from welfare schemes that include heat stress management requirements