How Are Eggs Made?

The development of an egg takes place in the ovary and oviduct. Chickens have only one ovary, on the left side. Certain wild birds, however, have two ovaries and oviducts. The ovary in a chicken might be likened to a bunch of grapes, with the many ova in various stages of development. Once the yolk has been fully formed or is ripe, it drops off the ovarian stem into the oviduct or egg tube, which consists of several sections. In the first section, known as the infundibulum, the egg is fertilized if the chicken has mated. Its stay in this section is but a matter of minutes; then it passes to the next section, the magnum. As the egg moves through this section the albumin is added, layer upon layer, four in all, a process that takes about four hours. By then it has also reached the next section, the isthmus, where two membranes, an inner and an outer, are added to cover the albumin layers.
These latter two membranes are completed in about an hour and ten minutes, then the egg reaches the uterus or shell gland, where it tarries for some nineteen hours. When the outer and inner membranes were first added they fit snugly over the egg, but soon they loosen up and so in the uterus the first five hours are consumed in filling out the membranes with water and minerals, a process termed "plumping" the egg. Then for the next fourteen hours several layers of eggshell are added. After that the cuticle or skin is supplied, giving the egg its characteristic color. The egg then moves on to the vagina and is expelled by the chicken.

Fertilized eggs are eaten too.  They are thought to be slightly lower in cholesterol but not sure if that is accurate.  We eat our chicken and duck eggs raw...something you should not do with eggs from a grocery store because they are so old.  Wash your fresh farm eggs with soap and warm water ONLY right before you are going to eat them.

First a chicken lays an egg then the chicken has to give warmth to the eggs under her chest   then the eggs that are not fertilized farmers pick them and sell them

Have the eggs that we buy and consume been fertilized ? Ie has the hen had sexual contact with a rooster prior to laying the eggs

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