Livestock Heat Stress and Climate Adaptation

Rising global temperatures are creating increasing heat stress challenges for livestock, requiring adaptation strategies that protect both productivity and animal welfare.

Key Facts

Heat stress causes $2.4 billion in annual losses to US livestock industry
Dairy cows experience heat stress at temperatures exceeding 25 degrees C with high humidity
Pregnant sows exposed to heat stress produce smaller, less viable piglets
Broiler chickens reduce feed intake by 5% for every 1 degree C above thermoneutral zone
Shade, ventilation, and sprinkler cooling reduce heat stress symptoms significantly

Welfare Considerations

Livestock heat stress represents an acute welfare problem that is intensifying with climate change: animals experiencing heat stress show panting, reduced activity, reduced feed intake, and in severe cases, hyperthermia and death. The welfare harm is preventable through appropriate housing design, but farms built for temperate climates are increasingly inadequate in warming regions. Animal welfare regulation must incorporate climate adaptation requirements to prevent welfare standards from eroding as temperatures rise.

What You Can Do

Support farm welfare standards that require heat stress management plans
Advocate for climate adaptation requirements in farm building regulations
Choose animal products from farms with adequate cooling infrastructure
Support research into heat-tolerant genetics for farm animal species
Engage with farming organisations on climate-resilient production system design