Using the Comfort Index to Avoid Summertime Heat Stress
Comfort Index | Situation | Protective Action Needed |
|---|---|---|
Less than 130 | Heat stress is not an issue. | None. |
130 to 150 | Horses will sweat but can stay safe if water intake is adequate. | None, as long as water intake is adequate. |
More than 150 (and relative humidity above 75%) | Heat dissipation through sweating may be a problem. | Limit exercise and check horses frequently for signs of stress. |
More than 180 | Heat dissipation through sweating fails. | Stop all workouts. |