Heat stress can significantly impact cattle performance, reproduction, and overall herd health. University of Wisconsin-Madison specialists note that cattle are most comfortable between 32°F and 77°F. As temperatures and humidity rise, cattle expend more energy trying to stay cool, which can reduce feed efficiency, daily weight gain, dressing percentage, conception rates, and bull fertility. Producers should watch for warning signs such as increased breathing rates, standing more than usual, restlessness, drooling, and, in severe cases, open-mouth or labored breathing. Young calves and heavy cattle are especially vulnerable.

To minimize heat stress, experts recommend several practical management strategies:

· Avoid handling, transporting, or processing cattle during the hottest parts of the day.

· Provide plenty of clean, fresh water and adequate shade.

· Improve ventilation and airflow in barns and confined areas.

· Use water appropriately to cool cattle and pens without increasing humidity.

· Feed during cooler parts of the day to reduce heat generated during digestion.

Monitoring cattle behavior and making these simple management adjustments can improve animal welfare while protecting productivity and profitability during periods of hot weather.

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