My chickens get raw eggs from a few days after they hatch and until they die. I have never had a hen have issues with others eating her eggs, or her eating her own eggs. Seven clutches have been broody hatched this year, I know what I am talking about.The only thing with feeding them their own eggs is you would need to scramble them first. Otherwise if a hen goes broody the others will attack her for it and you would have a bloody mess. Encouraging them to eat their own raw eggs is not good- would you encourage them to eat their own chicks for protein? No. So make sure you scramble the eggs first.