Bread makes a good treat for adults, but it is best not to give young chicks bread, period. The little chicks eat bread then drink water, bad things happen. If you're curious, put a little piece of bread in a bowl of water.
You do not puncture the shell for the float test, just put them in there whole. Sorry I no longer have that egg, that batch of eggs have hatched and I have another set in the hatcher now.
I too had similar issues with a "wet" incubation." I switched to dry incubating and have a 99% hatch rate. It's so much easier! Good to know I'm not the only one who took the chance. Maybe other disgusted folks will try dry incubating also.
I would give them a few more days, just to be sure. Seeing as how you opened the incubator during these critical last few days, they may be lost. For future reference, once they start pipping, it's best not open the incubator. The chicks can survive for 72 hours without food or water, so no...
No, the big end, into the air cell; the chick will be down in the little end. You should see movement, or even the beak if it's pipped internally. If you're unsure, you can even touch the inner membrane and feel for movement. Just be careful not to break the membrane covering the chick.
If you...