Thick lumpy shells...Can I still hatch them?

[shandiane78]

One of my hens lays over calcified shells on a regular basis. Would chicks have too much trouble breaking out of such an egg? Anyone have success incubating thick lumpy shelled eggs?! Is there something I should be doing to correct the problem? She eats layer feed and has access to oyster shell. The other hens don't have this shell problem though. Maybe I should try switching them all to chick feed, and still offer the shell as supplement?

Thanks,
Shannon

 

[HathawayHens]

I am not positive, but I think that you would not want to set these eggs, since the problems with the eggs might be passed on genetically to the chicks. That would be the only concern I had, as far as the pipping I guess time would tell...