When a pullet begins laying eggs, it’s a lot of fun. At first, the eggs are miniature, off-colored, and sometimes even mutated (I’ve seen two eggs "fused" into one when I was kid raising chickens). And although we haven’t yet witness a mutated egg from our pullets, we have definitely noticed small and off-colored ones!
Here’s a picture of one of our pullets’ eggs (left) next to a store-purchased brown egg (right). Quite a difference! I believe by the time our pullets are laying hen eggs, they will be a darker brown as opposed to their current tannish color.
Here are the eggs hatched open. The one on the left is our pullet’s and the one on the right is the grocery store egg. Besides the volume, do you notice the differences? Take a look at how much clearer the white of the pullet’s egg is and how much more yellow the pullet’s yolk is? This is a perfect illustration of how store-bought eggs are treated for lengthened preservation (by the way, the purchased egg I used for illustration was labeled organic, yet was still apparently treated). It not only detracts from it’s appearance, but the alterations also make grocery store eggs less nutritious. You can read more about the nutrition of store-bought versus home-grown eggs via this post by The Thrifty Mama.