There is a great vet formula for anorexic dogs called A/D - most clinics carry it. My one dog was on this when he refused to eat and this was how we got him eating again... Might work.
Boiled hamburger and rice can also be good for dogs ...
Conditions like White Shaker Dog Syndrome can happen in other (non-white) dogs - I am a director of a dog rescue and we had a beagle with this condition...
My dog is a toy fox terrier, 3 years of age. He came into rescue full of demodectic mange at 5 months old, and had a series of other minor problems (ie. he was a cryptorcid, he had extra canines, etc.) It took 8 months to clear up the mange (he was...