My current layer flock consists of 25 laying hens and a cock that's about a year and a half old and live in a secure, large coop and run. I'm raising about 25 pullets that are currently eight weeks old and intended to replace my current layer flock. I'd like to cull all but 3-5 of my best layers for breeding again next year and replace the culled birds with the new pullets. Obviously this will cause a pecking order issue with everyone but since I'm introducing a large number of pullets, will it be ok to to put them all in the coop/run with the cock and 3-5 adult hens at once? I understand if I were introducing new pullets to an existing flock it'd be best to introduce them slowly, but that's for the safety of the younger birds which are in the minority, but in this case the older birds will be severely outnumbered so I'm wondering if you'd have the same concern. If it'll be a problem I'll just cull all of the current layers so the only old bird left in the coop/run would be the cock. I don't see him having a problem with the new pullets since he's so much larger than them and of the opposite sex. Any thoughts would be appreciated.