More sweat in a cow under black spots?

My dear Minecraft friends! I've asked myself if cows sweat more under the black spots than among the whites, because it is well known that the color black sun attracts and it should therefore be hotter on or under the black spots. Or not?

Why does not anyone ask about zebras?

I do not think the body can accurately control sweating to the nearest square centimeters.

Sweating probably does not really have anything to do with the coat color. Dogs can't sweat because they have no sweat glands, or only in a few places.

Whether cows have sweat glands I honestly do not know. But if you have them, you will not be different in different spots.