You do not refrigerate them, you can store them for I think it is up to about 10 days for hatching ...but not under refrigeration...

I used to breed ducks for sale, and if you refrigerate them it will kill the embryo. I usually kept them for no longer than 7-10 days if possible, and it will take 28 days incubation.

never stored duck eggs in fridge but have kept MANY chicken harching eggs in the fridge, no problem, keep in the bottom as a crisper drawer. Not below 40 deg. F, They Do have to be turned daily no matter the storage. Easiest is to store in a carton set on an angle, change carton angle daily/

Not sure if thats true.Take swans for example Ive been breeding them for years.Shes working on her nest.shell lay 1 egg every other day till 8 are laid.It snowed already and they laid there in open because she wont lay till all eggs are laid.It was freezing many a year.They all hatched.

thanks a lot guys - sure did help - i love garden web!