Periconceptional Heat Stress of Holstein Dams Is Associated with Differences in Daughter Milk Production and Composition during Multiple Lactations
Fig 1
The mean temperature-humidity index (THI) during the summer and winter seasons in Georgia, Florida and Texas.
The threshold for heat stress in dairy cattle is a THI value of 68. During summer months, the average THI exceeded the threshold for heat stress in dairy cattle. In winter months, the average THI did not exceed the threshold.