Most hatchability holds on different days so it is best to not go past seven. One important tip is to place the point faced down.
It is almost impossible to tell a fertile from an unfertile pheasant egg just by looking at it. If you hold it up in front of a bright light, in a process called candling, a fertile egg will show a dark spot inside and a network of red blood vessels within the egg.
The main benefit of a (fertilised) pheasant's egg is to produce more pheasants. Eating pheasant eggs (as we do with chicken eggs) is less of a benefit than eventually producing a full grown pheasant.
The incubation period for a hedgehog egg is around 35 to 58 days.
Egg incubation
incubation
All reptile eggs need incubation to hatch.
Incubation of a kiwi egg takes 70 to 80 days.
Yes, the distance of heat from the egg can affect the incubation period of a chicken egg. If the heat source is too far away, it may not provide enough warmth for proper incubation, leading to a longer incubation period or even unsuccessful hatching. It is important to maintain a consistent and appropriate temperature in the incubator for optimal development of the embryo.
I believe you are reffering to incubation.
depends on the animal
A fertilized egg is an egg that is fertilized - in short terms, it can be incubated and a chick will hatch from it after incubation.
There is no definite age which you can no longer incubate a fertile egg, but the fresher an egg is, the better chance of a successful incubation and hatching.