For example, as hens that lay brown eggs age, they tend to lay larger and lighter-colored eggs. The hen’s environment, diet, and level of stress may also affect shell color to some extent ( 4 ).

Genetics is the simple answer. Some chickens lay white shell eggs and some lay brown shell eggs, similar to the way hair color varies in people. Shell color is not associated with the internal ...

“For chickens that lay brown eggs, a pigment protein called protoporphyrin is added as the eggshell is built, thus adding the brown coloration,” says James K. Yarborough, extension agent of ...

Contrastingly, hens that lay brown eggs, such as White Plymouth Rocks, are generally larger and more difficult to incorporate into existing commercial laying infrastructure.

If you’ve ever wondered why some eggs at the grocery store are white and some are light brown, there’s a very simple reason: Generally, hens with white-colored feathers lay white eggs, and ...

Genetics is the simple answer. Some chickens lay white shell eggs and some lay brown shell eggs, similar to the way hair color varies in people. Shell color is not associated with the internal ...