Farm Animals

Cattle Heat Stress Mitigation in Dairy Systems

Heat stress in dairy cattle causes significant welfare impacts including reduced milk production, impaired reproduction, and metabolic disease.

Key Facts

Dairy cows begin experiencing heat stress at 22 degrees C with high humidity
Heat-stressed cows produce 20-40% less milk and have poorer conception rates
Shade alone reduces heat stress indicators by approximately 50%
Sprinkler systems combined with forced air fans provide the most effective cooling
Climate change is extending heat stress season by several weeks annually in temperate regions

Welfare Considerations

Heat stress is a significant and growing welfare challenge as climate change extends extreme heat periods. Proactive provision of cooling infrastructure, shade, and water access reduces both acute distress and chronic metabolic burden.

What You Can Do

Support dairy welfare standards that include heat stress mitigation requirements
Advocate for climate adaptation planning in farm welfare assessments
Choose dairy products from farms with documented cooling provision
Encourage investment in genomic selection for heat tolerance