I'm still a couple weeks away from getting my first eggs . I just got my first birds in April. I add oyster shells to the ff sometimes there isn't any left in the dish sometimes there is. I also provide oyster she'll free choice. The rest of the mixture is a local non gmo feed, scratch, boss, and raw acv. Since it's been hot here in Ky they haven't eaten much ff and have stuck to chasing bugs and free range. I guess it helps that the grass was just cut so that really stired things up.