What the colors indicate | ||||||||
Livestock Heat Stress | ||||||||
|
Dry Bulb Temp(F) |
Relative Humidity Intervals (Percent) |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | |
78 | 70 | 71 | 72 | 74 | 75 | 75 | 77 | 78 | ||
80 | 70 | 72 | 73 | 74 | 75 | 77 | 78 | 79 | 80 | |
82 | 70 | 71 | 73 | 74 | 75 | 76 | 78 | 79 | 81 | 82 |
84 | 71 | 72 | 74 | 75 | 77 | 78 | 80 | 81 | 83 | 84 |
86 | 72 | 74 | 75 | 77 | 78 | 80 | 81 | 83 | 84 | 86 |
88 | 73 | 75 | 76 | 78 | 80 | 81 | 83 | 85 | 87 | 88 |
90 | 74 | 76 | 78 | 79 | 81 | 83 | 85 | 87 | 88 | 90 |
92 | 75 | 77 | 79 | 81 | 83 | 84 | 86 | 88 | 90 | |
94 | 76 | 78 | 80 | 82 | 84 | 86 | 88 | 90 | ||
96 | 77 | 79 | 81 | 84 | 86 | 88 | 90 | |||
98 | 78 | 80 | 82 | 85 | 87 | 89 | ||||
100 | 79 | 82 | 84 | 86 | 88 | 91 | ||||
EMERGENCY STRESS - Index of 84 or Greater
DANGER STRESS - Index of 79 to 83
NO STRESS - Index of 78 or Less
DANGER - EXPECT 25% or more increase in transit loss!
EMERGENCY - EXPECT 45% or more increase in transit loss!
Contact Tom Priddy in the Dept. of Biosystems & Agricultural Engineering, U.K. College of Agriculture if you have any questions concerning this chart.