Heat stress steals more profits than you think. According to an Ohio State University economic analysis, dairy producers lose $900 million per year to heat stress.

In the top five dairy states — California, Wisconsin, New York, Pennsylvania and Minnesota — annual losses due to heat stress were estimated at $109 million, $72 million, $57 million, $121 million and $88 million, respectively.

However, the use of heat-abatement strategies reduces the cost of heat stress, says Normand St-Pierre, associate professor of dairy management at Ohio State University.

This analysis shows just how important it is to cool cows during hot weather.