One of our older girls was egg bound this week. We gave her several 20 minute warm baths and even did ky on her vent with a lengthy massage. The egg ended up breaking during the night and we could find no sign of the shell in the coop or during a "closer" inspection. That was yesterday, today she is very lethargic and seems to be "panting". She also has the typical butt scoop of an egg bound hen. I'm not sure what to do, more baths and possibly more ky? Any suggestions?