Flaky skin can be caused due to a number of reasons like poor diet, stress, shampooing too often, etc and of course dandruff. Dandruff flakes are slightly different since they tend to be more oily and larger than the dry skin flakes. Since you have not mentioned about any foul smell or oily flakes, I gather it could easily be a nutritional cause. Try a commercially available petfood like Pedigree, which addresses nutritional needs.
Question by - Kirti Somiya, Mumbai