use fertilized eggs
incubator which is like a hen sitting on the eggs and the incubator keep the eggs nice and warm and moves them like a mama hen would do but a incubator cost a lot of money
The prepositional phrase is "inside the incubator" and functions as an adverb.
With a incubator.
Fertile eggs start developing when the hen starts setting, or when they are put in an incubator.
A hen sitting on her eggs until hatching takes place is an example of natural incubation. Eggs taken from the nest and placed inside an incubator, in which warming lamps help the eggs to hatch, is an example of artificial incubation.
an egg incubator
Any non-viable eggs need to be removed, and whatever can be cleaned up should be.
Buy and incubator and put the eggs in it until they hatch!
An incubator is the best way but a simple light bulb incubator is sufficient to hatch eggs.
You just lay them under the incubator, wait for 21 days, and they hatch!!
Eggs are spaced apart in the incubator to allow for the circulation of air. It is also important to keep a space between the eggs so that there is room to turn them over periodically.