Good morning, I have started adding half flock raiser to the layer because I don't think the layer has enough protein, my pullets have their own coop and pen. I also add oyster shell and crushed egg shells. They get a couple of handfuls of meal worms in the evenings and a cup of scratch. They only hatched this year and I feel that they are too young to only have 16% protein. Egg production has improved with this regime. Every one else gets the 20% flock raiser.
This sounds very similar to what I do. Mine also get a cup of scratch and a cup of dried mealworms and I mash up hard boiled egg white with the shells. So maybe I will mix the two feeds. Since they are silkies, even though they are 16-20 weeks, it could be awhile before I actually get eggs.