if you live somewhere where it gets cold in the winter than yes your dog can shed just as much as anyother time of the year.

The main reason for this is because the dog goes out to potty & excersize right? So its cold out there, than he comes in to a warn cozy place. His body is going from warm to cold to warm to cold so his body is producing more fur then loosing it & so on over again & over again.

You can try adding a tiny bit of safflower oil or they also make many vitamins & supplements to improve the skin & coat like lipaderm (sp?) but speek with your vet they should tell you what & how much to use they will ussually tell you this over the phone which meens a free vet consult WOW!