We are changing from a pelleted, but quality food, to an organic whole grain feed. How long would you think it would take to see a change in the chickens or their eggs? These hens also free range everyday on a lovely grass and clover field.
You may never see a difference if the old feed was otherwise nutritionally complete, especially seeing as how you're free-ranging them as well. But you might. In my experience it takes about two to four weeks if there is going to be any noticeable difference.
