Xeph
Posted : 5/1/2007 3:15:36 PM
Diet IS part of it, but some of it is breed and coat texture.
A Puli or Komondor is not going to shine like a Black Lab or Golden retriever. A smooth coated dog is going to appear "shinier" than a long coated dog more often than not. In the case of many rough coated Collies, the hair on the back (where it is flat) can be quite shiny, but the sides appear dull (even though the coat is perfectly healthy).
Good old optical illusions ^_^