I rarely feed layer feed. I keep a small amount of 17% and 20% protein layer on hand if a whole flock is laying.
For flocks where some are in production and some aren't and all flocks with roosters, they get a 16% fermented grower feed. Each flock has 2 containers of oyster shell - one next to the feeder and one next to the nests. They'll pick up what they need when the egg enters the shell gland.
Like Chris King said, there's a variance between individuals' needs. Not only in their ability to utilize intake but also consider that you'll have some birds laying almost daily and others laying a couple eggs a week. The former will need twice the calcium of the latter due to almost 2.5 grams of calcium per egg.
For flocks where some are in production and some aren't and all flocks with roosters, they get a 16% fermented grower feed. Each flock has 2 containers of oyster shell - one next to the feeder and one next to the nests. They'll pick up what they need when the egg enters the shell gland.
Like Chris King said, there's a variance between individuals' needs. Not only in their ability to utilize intake but also consider that you'll have some birds laying almost daily and others laying a couple eggs a week. The former will need twice the calcium of the latter due to almost 2.5 grams of calcium per egg.