What is really used as fillers in cheap dog food?

Used in low quality, cheap commercial dog food, save fillers are generally in "the dog's food", the producers money, not to increase nutritional value. Included are products that are not edible and difficult to digest for our pets, such as: cereal products - cotton seed hulls - crushed peanut shells - straw - and crushed corn cobs, - weeds, and - feathers.

Filled with a cheap dog foodCorn fillers such as corn listed, corn meal, corn gluten, and should, since this is a substitute for a higher quality animal protein sources are avoided.