Sheep in hot climates face significant heat stress that is often underrecognized compared to sheep cold stress, requiring management adaptations.
Sheep heat stress causes significant welfare compromise including increased respiration rate, reduced feed intake, and poor production outcomes. Heavily woolled breeds are particularly vulnerable during summer heat. Providing shade, adjusting shearing timing, and modifying stocking during heat waves protects sheep welfare during vulnerable periods. Recognition of heat stress signs improves management responses.