Water Usage Reduction Idea – Constructed Sun Shades For Cattle? To Prevent Food And Water Shortage

A quick idea.

I was wondering. After watching livestock images on wikipedia it struck me. What if we made ?movable sun shade constructions.

It seems obvious that if the animal is too hot it needs more water. So when water is scarce. They can still manage if more sun shade is available? Also could big low power fans work? 12 volt solar powered cattle fans?