I have 2 Flocks, 3 hens on Layer feed 16%, and 8 POL pullets (18 weeks old) on a Starter-Grower feed 18%.
I'm expecting first eggs soon and will switch to a Layer feed when both breeds (RIR & BR) are laying.
My hens have their own coop and pen and have begun a soft molt, but still laying daily. GC
I keep them on the same feed free choice year round.
But they do get double Scratch Grains, 2 Tbsps daily per chicken compared to summer's 1 Tbsp daily.
I also buy a bale of Alfalfa hay for winter season and toss a flake into the pen or coop weekly to supplement the lack of greens. GC