Farmed Animals

Farmed Cattle Feedlot Heat Stress Management

Heat stress in summer feedlots causes reduced intake, altered behavior, and mortality in beef cattle; shade, water, and evaporative cooling reduce welfare impacts.

Key Facts

Heat stress in feedlot cattle occurs when temperature-humidity index exceeds critical thresholds
Economic losses from heat stress in US feedlots exceed $300 million annually
Shade provision reduces peak body temperature by 1.5-3 degrees Celsius
High-volume water delivery during peak heat is critical as stressed cattle increase water intake 4-fold
Misting systems and mechanical ventilation provide additional cooling in intensive systems

Welfare Considerations

Cattle experiencing heat stress show behavioral signs including reduced feeding, increased respiration rate, and clustering around water. In severe cases they develop heat stroke, collapse, and die. The welfare harm is significant and the interventions - shade, water, and air movement - are straightforward. Failure to provide these is a preventable welfare failure especially as climate change makes extreme heat events more frequent.

What You Can Do

Support feedlot welfare standards that mandate shade and adequate water during heat events
Advocate for heat stress provisions in livestock welfare legislation and farm certification
Reduce beef consumption to decrease the total scale of animals exposed to feedlot conditions
Support research into heat-tolerant beef breeds appropriate for climate-adapted systems