So we have a flock of 15 layers (from our starting flock of 24 two years ago) and I know they are going to start slowing down egg production in the coming year. The plan is to start a new batch of chicks that will start laying this summer and take over from the existing girls. My question is do we need to keep them separate as long as they are on chick starter feed to keep the older hens from getting into that feed? We raised meat chickens this past summer so I would do the same setup for the new chicks, put them in the movable coop when they hit 4 weeks old or so with a hot fence enclosure to keep them separated from the existing flock. I would like to eventually integrate the two groups, but it might be better to just harvest the older hens when the new group starts laying. Suggestions, ideas, your experience appreciated.