Note that if you go that route (which I do, for the added protein) you will also need to offer free-choice calcium, made always readily available. I see that you DO have free-choice oyster shell, but I mention this so others who read this will realize it needs to be supplemented for laying hens. I use a bowl of crushed oyster shell and they even have a bowl of it in their favorite free-range hangout by my A/C and sage bushes.