Hatch rates will be lower for eggs older than 2 weeks. Shipped eggs should not be older than 7 days because of the added stress from shipping.
Older eggs will still hatch--I would not set eggs older than 30 days and if I did I would watch them very closely for rotting.
Need to repost this one every now and again..think I will every night if that is ok until we get started, this is really important to know ron, and there are a lot of newbies this yr. Thanks!