No, egg color has no bearing on shell hardness. Brown eggshells are really just brown pigment applied to a white egg shell as the egg is being laid and don’t effect egg quality, nutrition, or shell composition.

Eggs come in many colors, depending on chicken breed. However, there is no nutritional difference between brown and white eggs. In the end, the only real difference is shell color and maybe price. Nevertheless, other factors do affect the flavor and nutrition of eggs, including the hen’s diet and housing conditions.

Brown eggs are brown. The differences in shell thickness that you may have observed likely has to do with the age of the chicken- young chickens lay eggs with shells that are typically harder than older chickens’ eggs, but this is true for both white and brown egg layers.

The thickness of the shell is determined by the amount of time it spends in the shell gland (uterus) and the rate of calcium deposition during shell formation. If the egg spends a short period in the shell gland, the thickness will be less.

Because you expect white eggs to crack more cleanly, you notice when they do but not when they don’t. It also could be a case that the hens that lay the white eggs aren’t fed as good of a diet; some layer farms skimp on calcium, which will make the shells thinner.

Shell quality can be improved by providing the nutrients needed for the hen to build her bone reserves of calcium and make good shells: Feed a third to half of the calcium as large particles that are approximately ½ cm in size.

Wrinkled Eggs As a hen ages, the whites (or albumen) in their eggs naturally gets thinner, and since it’s more difficult for the shell to encase a watery substance, the shell can end up with bumps and ridges. Heat stress can also cause a wrinkled egg surface, as can poor overall nutrition, or a defective shell gland.

Crushed oyster shells are an excellent source of calcium, and are the most common way flock owners supplement calcium in their flock. Some people also clean and crush their used egg shells and feed them back to their hens.

It’s perfectly ok to eat thin shelled eggs.

Tiny, yolkless eggs are sometimes known as witch eggs or fairy eggs. It simply means your hen didn’t release a yolk before her body started producing an egg to enclose it. Sometimes a hen may lay a small egg that still contains a yolk, too… even if she normally lays larger eggs.

The heaviest egg reported to have been laid by a hen is one of 454 g (16 oz), with a double yolk and double shell, laid by a White Leghorn at Vineland, New Jersey, USA, on 25 February 1956.

The short answer is that yes, chickens fart. Just about any animal that has intestines is capable of farting, in fact. Chickens pass gas for the same reason that we do: They have pockets of air trapped inside their intestines.