Determination of eggs fertility (poultry)
Determination of eggs fertility in poultry (egg tract)
In order to determine whether the eggs are fertile or not they are cancelled at about five (5) days.
This involves passing a strong light in the eggs while looking at it, if the eggs are fertile the developing
embryo as a spick with a spider web light network of blood vessels will be seen. If a fertile egg has stop developing it will be seen as a dark spot with a red rim above it.