A pregnant ferret should be fed a high-quality, high-protein diet. Good options include ferret kibble designed for pregnant ferrets, homemade diets with fresh meat such as chicken or turkey, or commercial wet food high in protein and low in carbohydrates.
Feed small meals several times a day and ensure constant access to fresh water. Avoid foods high in fat or sugar, which can contribute to weight gain and health problems. Start the high-protein diet as soon as pregnancy is known and gradually increase portions as it progresses.