Chicken Egg Candling Chart. Backyard Poultry Contributor Categories. Larger air space slightly darker yolk a nearly bad egg really dark yolk spotty and a spoiled egg mixed in yolk lots of dark lit up using the candling.
That candling is mandatory since infertile eggs can explode in the incubator and take out your other eggs. At the other extreme. The pictures are very clear and informative.
The pictures are very clear and informative.
A chicken egg takes 21 days to hatch. Progression Through Incubation. In these eggs that have been candled out the infertile egg right shows no development while the 212-day-old BWE egg left shows the typical extraembryonic membranes sur-rounded by a blood ring. By candling the eggs you can determine stage of development or if the egg has failed to develop and died within the shell.