Heat loss for all horses becomes difficult when temperatures exceed 90°F. | Photo: Thinkstock

“The combination of hot, muggy weather conditions prompts some real concern for humans, as well as livestock and pets,” said Tom Priddy, meteorologist for the University of Kentucky College of Agriculture, Food, and Environment. “The livestock heat stress index is a combination of air temperature and humidity. That one-two punch makes it hazardous for people and animals. Dew point temperatures above 65°F lead officials to declare conditions dangerous for livestock.”

The Livestock Heat Stress Index helps producers know when heat stress could create a problem for their animals. Periods of heat stress call for livestock producers to be vigilant in making sure their animals are able to withstand the conditions.

Heat loss for all horses becomes difficult when temperatures exceed 90°F, so avoid exercising them during very hot periods. When humidity is high, even temperatures much lower than 90°F can pose problems. Horse owners can reduce heat stress by scheduling activities during the cooler part of the day and giving horses plenty of water. Transporting horses during the cooler hours of the morning or evening can help. To reduce the risk of dehydration and heat stress when traveling in hot weather, give horses access to water before, during, and after transportation