I have some Malaysian Seramas who are laying eggs, but won't go broody. Is there a way to speed them along? She now has 9 eggs and probably cannot cover any more. I also have several hens in the coop with about 7 eggs and they won't go broody either. How long should I let them go before I just throw the eggs away? How long can I leave the eggs with the chickens and still safely use them? Thanks for your help!