Methods to Relieve Heat Stress for Dairy Cows in Hot, Humid Climates

Hot, humid weather causes heat stress in dairy cows leading to declines in feed intake, milk production, and fertility. These declines can be reduced or eliminated by using a heat stress relief program consisting of a combination of shades, feed and water offered under shade, ventilation, and sprinkler and fan cooling. Results from experimental studies in Florida and Kentucky indicate that sprinkling and fan cooling systems in combination with shades can improve cow comfort and increase milk production of cows in hot, humid climates.