Heat stress causes significant welfare harm and death in cattle during extreme heat events. Recognition and rapid response protocols protect cattle welfare and reduce mortality.
Heat stress causes significant acute suffering through respiratory distress (panting), cardiovascular strain, and the discomfort of hyperthermia. Deaths from extreme heat events represent the endpoint of a welfare failure cascade that begins with inadequate shade and cooling resources, continues through escalating stress signs, and ends in fatal hyperthermia. The welfare case for proactive heat stress management - shade provision, cooling systems, and emergency response protocols - is clear. Climate change is increasing the frequency and intensity of heat stress events globally, making heat abatement infrastructure an increasingly important welfare investment for cattle operations.