Things You'll Need
- High-powered flashlight
- Water-soluble white glue
Instructions
Remove the eggs from the incubator and carry them to a secure work surface. Work quickly but carefully so the eggs are returned to the incubator before they have a chance to cool off too much.
Turn out the lights in the room.
Candle the egg by holding the flashlight behind the egg. Move the flashlight around as needed to visualize inside the egg. Blood vessels and irregularities in the shell will be visible as the light is moved around.
Discard eggs with large cracks and those where the membrane of the egg has been damaged.
Coat hairline cracks in the egg with a small amount of white glue. Cover the entire crack, but avoid covering the undamaged areas of the egg. The repair may require several coats of the glue.
Replace the eggs in the incubator after all have been checked and cracks covered.
Candle the repaired eggs a few days later to make sure the chicks are still developing. Discard eggs with blood rings, eggs with a bad smell and those that appear to be seeping.