We have raised several clutches with our hens. We have to get fertilized eggs from a family member with a rooster, so not 100% on fertility. It's day 24 and I'm curious if cooler template outdoors would cause slower development or later hatch. I know in incubation temp is important, and that mom is perfect for eggs, but it got down in the 40s one week and made me wonder if this would slow them down. Any thoughts?