My ferrets have incredibly soft and shiny coat, are neither too thin nor too thick and are energetic. Certainly there also plays this food with pure. It's just one of the few really good ferret dry foods and -I Faith-even the best among the varieties that you can feed it without hesitation.
Still, one may transform the food wonderful with a glass of water and oil to "wet" lining. This adds variety and for example is welcome after castrations here.
However, you should still take care, that ferrets get their portion of meat and / or feed animals daily.