Since my girls have been 3 wks old they have been fed only chick starter and water ff feed. No grain, no additives. They are totally fat, sassy and very well fed. Just the last couple of weeks they have finally gotten kitchen scraps. When mine start to lay in a few weeks their ff will only be layer feed and water. For the first time since having mine I added Black Oil Sunflower Seeds. Ask Bee but I think it ups their protein intake. I gave it free first and they loved it so now it is in my ferment bucket and I will probably add a handful with each ff batch.