I can't think of a much worse life than being bred to produce massive, uncomfortable amounts of milk, being forcibly impregnated, having your offspring taken away from you while you cry out for them, being hooked up to an industrial milking machine, and then starting the cycle all over again, over and over until your body finally gives out after 3-4 cycles and you're dragged off to be slaughtered. But hey at least they get to listen to Mozart.