Signs of heat stress in dairy cows start to become noticeable around 21°C. When cows begin to experience heat stress, they begin to eat less and milk production falls. In addition to an excellent ventilation system, heat stress can be reduced by the periodic wetting of the cows hide. The Edstrom cow cooling system features high-capacity shower nozzles that produce a coarse droplet spray that penetrates the hair and wets the cow to the hide. Air movement generated from the ventilation system helps evaporate the water and pulls heat from the animal.