Well, I think as long as the food is clean, hasn't gone bad, etc, why not? I mean, they'll eat worse themselves (especially the chickens) so why not fruits and veggies that are still good? I think this is a good idea, actually.
Not necessarily. "Hot" is usually a reference to a foods energy level, not an indication of heat produced through digestion. Digestion is the main source of heat in cold weather, so a food has to be harder to digest - grass hay is a good example - in order for it to to contribute to the warmth of said animal over a long period of time.The one negative thing I read about Cabbage is that its HOT, but wouldn't that work great in winter temps? We get below -15 several times a year during winter.