Most grocery store eggs are infertile so, of course, cannot hatch.
But some stores such as Trader Joes among other do sell fertile eggs for table use. It is those that some folks try to hatch.
Not being intended for hatching so not handled appropriately for that purpose their hatch rate usually isn't all that great from what I've read but they do get some to hatch.
Refrigeration alone isn't going to negatively affect an egg's hatchability. I routinely refrigerate mine here in Florida as I save up enough eggs for a setting. I typically get 90% or better hatch rate from eggs we produce.
I keep White Leghorns from McMurray and believe they are Hyline birds.
But some stores such as Trader Joes among other do sell fertile eggs for table use. It is those that some folks try to hatch.
Not being intended for hatching so not handled appropriately for that purpose their hatch rate usually isn't all that great from what I've read but they do get some to hatch.
Refrigeration alone isn't going to negatively affect an egg's hatchability. I routinely refrigerate mine here in Florida as I save up enough eggs for a setting. I typically get 90% or better hatch rate from eggs we produce.
I keep White Leghorns from McMurray and believe they are Hyline birds.