Heat stress in cattle causes significant suffering, reduced productivity, and increased disease risk, and as temperatures rise with climate change, effective management strategies are increasingly critical for animal welfare.
Heat stress is a pervasive welfare issue in cattle farming that imposes real physical suffering on affected animals. Cattle rely primarily on respiration and sweating for thermoregulation, and when ambient temperatures exceed their thermal comfort zone, they experience progressive physiological stress. Severe heat stress can result in heat stroke, organ failure, and death. More commonly, it causes chronic discomfort and suppressed immune function that increases susceptibility to disease. Effective management requires proactive planning including shade structures, evaporative cooling systems, altered feeding schedules to reduce metabolic heat load during peak temperatures, and access to abundant cool water. As climate change intensifies, farms in previously temperate regions will face heat stress challenges that were previously uncommon, making welfare-focused adaptation planning essential.