When our birds lay eggs, it is quite natural because they want to have babies. But also because we wanted this happy event to happen. And so as not to have false hopes, we, therefore, appreciate knowing if these eggs will succeed or if there is nothing to expect from them. The egg candling is our solution for determining the fertility of eggs.
Candling eggs: when and how?
When can you start candling the eggs?
The egg candling may take a third of the incubation period (usually from the 7th day with an uncertainty of +2 days). Hence the importance of knowing exactly which egg was laid at which time. Because the eggs are not always laid at the same time. For this and after each laying, the eggs are marked. Beware of markers whose solvents pass through the shell.
Tip: you can lightly mark the eggs with food coloring diluted in egg yolk and a little water and using a brush (don’t take yourself for Picasso lol).
How to carry out a candling of eggs?
To make the exercise more effective, the candling of the eggs must be done in a dark room for perfect transparency.
How can you brown the eggs?
As I said above, for an egg candling, we need a source of light. In shops or on the internet, there are practical and portable egg testers at reasonable prices. However, if the light source is powerful and overheating, it is not necessary to have direct contact between the bulb and the egg to preserve the latter.
Tip: Personally, I use the flashlight on my phone which does the job well (see video) 🙂
Egg candling: clear egg / fertilized egg!
But beyond our natural curiosity, the candling of eggs is often necessary to prevent parents from fatigue by incubating eggs that are not fertilized.