Hands down, one of the best investments anyone who lives where it gets cold and has any kind of livestock can make is water fount heaters or heated buckets. Why people still waste time and energy breaking ice out of dishes and troughs when you can simply run an extension cord or other electical supply to a heater is beyond me. It's especially valuable for animals that have rumens, like our goats. They'll pack it full of hay, suck down water, and then go lay down to chew cud.. A full, well functioning rumen is like a little furnace inside of them which helps generate body heat but they need to have fresh water for it to work properly. ( Doesn't hurt that it's also slightly warmed in the bucket. )