The basic ingredient for thousands of recipes will be eggs. Without it, there would be no cakes, pastries, and even scrumptious breakfast meals. It is produced by hens after reaching their six months of age. Raising chickens for eggs is prolific in the first two years of a hen's life. As your hen grows old, production of eggs also decreases. So, if you want to have continuous production of eggs, you should consider having one to two new birds per year.