How long are duck eggs good to eat?

[Brassmaster]

How long can you keep duck eggs (refrigerated) and still eat them? Is there any difference if they are fertilized or not?

 

[LilDucky85]

I'm guessing just as long as chicken eggs?

 

[Wifezilla]

Eggs are fresh an usable for months in the fridge. If you are ever in doubt as to the freshness of an egg, do a float test. Put eggs in a large bowl of water. If they are fresh, they sink to the bottom. If they go to the bottom, but stand on end, they are getting old, but are still usable. If they float, toss them out.

It's the same fertile or not.