Marshall Select Chicken Formula Premium Diet vs. Mazuri Ferret Diet

Marshall has a better protein to fat ratio. However, Mazuri's ratio is not bad. (The ideal ratio is 2 to 1.) Marshall has much fewer ingredients, which is usually a good thing. Marshall has a slightly lower concentration of fruits, veggies, grains, and starches. Both foods are pea-free. Both foods contain controversial ingredients.

Marshall Select Chicken Formula Premium Diet

Marshall has a better protein to fat ratio. However, Mazuri's ratio is not bad. (The ideal ratio is 2 to 1.)
Marshall has much fewer ingredients, which is usually a good thing.
Marshall has a slightly lower concentration of fruits, veggies, grains, and starches.

Legend

First 10 ingredients:

chicken chicken by-products chicken by-product meal corn meal dried beet pulp brewers dried yeast choline chloride dl-methionine l-lysine sodium propionate

Mazuri Ferret Diet

First 10 ingredients:

poultry by-product meal ground brown rice dehulled soybean meal porcine animal fat spray dried animal blood cells poultry fat glutamic acid dried beet pulp soy protein concentrate soybean oil