Cattle Heat Stress Advanced Management

Heat stress in dairy and beef cattle causes significant welfare harm and production losses - advanced management strategies reduce both.

Key Facts

The Temperature-Humidity Index above 68 indicates the onset of heat stress in cattle
Dairy cows begin to reduce feed intake and milk production at relatively mild heat stress levels
Heat stress during pregnancy affects calf development and future cow productivity
Cooling strategies include shade, sprinklers, fans, and behavioural feeding adjustments
Rumen acidosis risk increases during heat stress due to changes in feeding patterns
Climate change is increasing the frequency and severity of heat stress events in temperate regions

Welfare Considerations

Heat stress causes both immediate suffering and longer-term welfare and health consequences in cattle. Welfare-conscious farms implement comprehensive heat abatement plans before summer begins rather than responding reactively. Monitoring THI and cattle behaviour allows early intervention to prevent severe welfare impacts.

What You Can Do

Support farmers investing in heat stress management infrastructure and training
Choose dairy products from farms with comprehensive heat management systems
Advocate for heat stress welfare standards in farm assurance schemes
Support research into cattle breeds with improved heat tolerance for future climate adaptation