You will need
  • - candling or a homemade device for radiographic eggs
  • - tray to hold eggs
  • - rubber gloves
For incubation, it is desirable to lay eggs from their chickens, and not imported. Liluplanet often below 50% for the reason that during transportation from vibration and temperature changes the embryo dies. But it can happen and in that case, if the incubation process is somehow broken. So the farmers, there is a rule to check the eggs before laying on 6-7 and 11-13 day after.
How to test eggs in the incubator with the help of candling?

This procedure is carried out with extreme caution and only clean hands. You can wear thin rubber gloves. Take the egg you need two fingers to check and put back the pointy end down. The movement should be smooth and accurate. Each egg out of the incubator, it is necessary not only to validate with x-ray, but also inspect for sooting or cracks of the eggshell.
If candling is not available, you can make it analog: a simple design of a small cardboard box or a wooden drawer at the bottom which you want to install a light bulb small power (60-100 W). Directly above it is necessary to cut out a circle of such a size that the depression could fearlessly lay the egg. From the lamp to the lid of the box should be no more than 15 cm.
The candling or a homemade device may be best used in a darkened room. In this case, the result of scanning will be seen more clearly. During the inspection of the egg to gently and slowly rotate. The ambient temperature must be sufficient to prevent hypothermia of the embryo. To the verification procedure was more simple and less time consuming, next to the candling and it is recommended to install the storage tray of eggs and put them into it with the blunt end upwards. But we must also remember that, outside the incubator, the egg may be no more than two minutes.
How to determine whether an embryo is alive?

When candling eggs before placing in the incubator are often only visible the air chamber. The embryo and the embryo is visible as a faint shadow with indistinct borders. To determine whether the fertilized egg, is quite difficult. So farmers make culling on the basis of visual characteristics. For example, lay in the incubator only to large eggs with smooth clean shell. On a 6-7 day incubation can be distinguished in the sharpened end of the egg by a network of delicate blood vessels, and the embryo looks like a dark spot. If the vessels are not visible, it means the embryo is dead.