That's your decision. If you have a rooster and are interested in hatching chicks, I would stick an egg beneath her. If you want to break her of it, just lock her in a cage with food, water, and no nesting boxes for a couple of days. It can take anywhere from a day to a week to break a broody, depending on how determined she is.
That is correct - they typically will leave the nest for a few minutes to care for themselves, and will do so more frequently during incubation. The only problem I've had with broodies is that they sometimes contract mites, which will transfer to the chicks once hatched. Hitting them with Sevin dust before the egg has reached 12 days of incubation is the recommended treatment.
That is correct - they typically will leave the nest for a few minutes to care for themselves, and will do so more frequently during incubation. The only problem I've had with broodies is that they sometimes contract mites, which will transfer to the chicks once hatched. Hitting them with Sevin dust before the egg has reached 12 days of incubation is the recommended treatment.