I've recently started fermenting our chicken feed because everyone is singing the praises of all the health benefits. It has me thinking about all my other animals and wondering if I could do the same for them. We have three dogs, two cats, and a Green Cheek Conure (bird). I make the bird food from healthy grains (quinoa, brown rice, oats), eggs, vegetables, nuts, etc.. We buy dry dog and cat food. What exactly is fermentable? Are any of these? Thank you!!