Heat stress can be a serious problem. CowSignals trainer Dan Mosley took some pictures on a barn in Nova Scotia. This are his comments:
"It was 35 degrees Celcius and the cows were all huddled under the big fans along the barn. Cows bunched up so heavily I’m sure they were getting even hotter, but just didn’t want to leave the breeze!"
The message is clear: watch out for heat stress! Cows like 5 - 15 degrees Celcius.
What we can do is either improve the ventilation or reduce the sunlight coming in.
What else can we do? You're thoughts are very welcome!