I have a hen sitting on 10 eggs and i noticed yesterday that one of the eggs was cracked but the inner liner of the egg was still intacked. I know that the egg was fertile i did a candling a couple days before and you could very plainly see a moving baby in there. Should i discard this egg or is there a chance it will still hatch?
There is always the possibility that a cracked egg might break and contaminate the nest. If the crack is minimal, try covering it with melted wax. Good luck - such eggs can hatch especially if they are close to 21 days.