At AgNext, we prioritize animal health and welfare as we innovate and conduct research to find sustainable solutions for animal agriculture. Heat stress is a physical response produced by animals when factors like temperature and humidity get too high. It’s not possible to completely eliminate heat stress, but by knowing the signs and mitigation strategies, the frequency and duration of heat stress can be reduced. 

What is Heat Stress?

Unlike other animals that can adapt to diverse climates by altering their physical characteristics (for instance, dogs shedding fur to regulate body temperature), cattle lack this adaptability. Instead of undergoing physical changes, cattle modify their bodily functions to alleviate the stress caused by extreme heat. This response is triggered whenever they are in specific environments, making it impossible to entirely eliminate heat stress. By employing identification and prevention strategies, we can reduce the frequency and severity of such stress.

Cattle attempt to dissipate heat through panting and stretching their necks, as they lack the ability to sweat, limiting their means of cooling down. Recognizing signs of heat stress in cattle is crucial, and implementing mitigation strategies becomes imperative. These strategies encompass surface water application, provision of shade, ensuring access to clean water, and designing barns intentionally to facilitate heat dissipation.


Heat stress defined by Dr. Manriquez:


Additional Heat Stress Resources: