Egg Temperature that is safe for saving eggs before chicken is broody

[rky mtn hen house]

I want to save a dozen of my Cockoo Maran's eggs in anticipation of her going broody. Where and at what temperature should I "store" them in anticipation of this happening (ok, yes I am hoping by the end of the month). How cold is too cold? It has been cold here 30-40 degree the last couple of days and I want to make sure the eggs are going to be viable if she goes broody. What is the best temperature and place to store them in the meantime? Also what length of time can I save them?

Thanks for all the help.

Vickie

 

[dickhorstman]

Optimum is 50-60 degrees, but successful hatches have been achieved with wider ranges. Hatchability decreases the longer you hold eggs also. 7 days is desired.

 

[rky mtn hen house]

So good to know. Thank you!