Livestock Heat Stress Management

Climate change is intensifying heat stress in livestock, causing reduced production, immune suppression, and significant welfare harm across farm species.

Key Facts

Heat stress costs the US livestock industry over 2 billion dollars annually in production losses
Dairy cows are particularly susceptible and show reduced milk production and fertility under heat stress
Poultry experience heat stroke and mass mortality events during extreme temperature events
Heat stress suppresses immune function and increases susceptibility to infectious disease
Shade, ventilation, sprinklers, and access to cool water are effective mitigation measures

Welfare Considerations

Heat stress in livestock represents a growing welfare emergency driven by climate change. Animals confined in buildings without adequate ventilation or outdoor animals without shade experience hyperthermia that impairs physiological function and causes genuine suffering. The consequences extend beyond welfare to reproductive failure, immune suppression, and death. Economic losses from heat stress create some commercial incentive for mitigation, but welfare standards should not depend solely on economic alignment. As temperatures rise, heat stress management will become an increasingly critical welfare requirement across all farm animal species.

What You Can Do

Support farms with documented heat stress management plans including shade and ventilation
Advocate for heat stress management standards in farm animal welfare regulations
Choose animal products from farms with climate-controlled or thermally appropriate facilities
Support research into heat-tolerant genetics that reduce livestock susceptibility
Reduce animal product consumption to decrease demand for systems without adequate heat management