Broody hens provide optimum conditions for embryos developing in the eggs they are sitting on. The brood patch provides heat from one direction only, and the eggs at the side of the patch are cooler than those in the middle of the nest. However, because the broody hen regularly turns and moves the eggs in
THE STRUCTURE OF THE EGG To be well informed of the factors influencing the quality of the egg (both hatching egg and consumer egg) and those of the incubation and hatching process it is necessary to know the structure of the egg. Below you will find a rough enumeration of the most important parts.