Just for clarification does that mean that as the digestive system of the chicken adjusts to the healthier feed (FF) and becomes more healthy in turn that they will eat less of the healthy feed? Sorry if that question reads strange, it's the best I could do to word it without sounding argumentative.Bear in mind- the stronger the ferment, the less they will eat to a point. When you first start feeding it, they will pack it in. As their gut flora adjusts, they do cut back.
RichnSteph