To obtain a dog food of dry type low in calorie and high in palatability since a dog food of total nutrient food controls a crude fiber content, many products lay emphasis on nutrition such as protein, etc., a fibrous material has functions of maintaining a stomach well and keeping intestine in a better condition, the supply of the fibrous material apt to be deficient can discharge a hard and healthy dung of good shape by feeding the dog food as an eating between meals.

This dog food is produced by mixing 100 pts. of a chaff fermentation product prepared by aerobic fermentation using chaff and bovine urine with 18-35 vol.% of wheat flour as a coagulating and solidifying material, 1-3 vol.% of charcoal as a deodorizing material and 5-7 vol.% water, forming and drying.