Eggsperts say the viability starts dropping at two weeks so the hatch rate would most likely go down for any over that amt of time.What's a good cut off date for collecting eggs? I've heard 2 weeks.
Someone recently shipped me eggs and threw in a bunch she said were getting close to 3 weeks old. So by the time I got them, they were over 3 weeks. There were 22, and I have 18 left that still looked viable at the last candling a few days ago. One week to go!