Incubation and Embryology - University of Illinois

Trivia: More Than You Ever Wanted to Know

Egg Shell
The color of an eggshell depends upon the breed of hen. Hens with white ear lobes lay white eggs. Hens with red ear lobes lay brown eggs. Rhode Island Reds, New Hampshires and Plymouth Rock chickens lay brown eggs. White Leghorns and Brown Leghorns lay white eggs.

Egg White
The color of the egg white depends upon the presence of carbon dioxide. A fresh egg has a great deal of carbon dioxide, since it has not had time to escape, and the white looks very cloudy.

Egg Yolk
The color of the egg yolk depends on the hen's diet. If she eats yellow corn or alfalfa meal, the yolk is medium yellow. If she eats barley or wheat, the yolk is a lighter yellow. If she eats white corn meal, the yolk is almost colorless.

Egg Games
Egg games have their origin in many cultures. Egg hunts have long been a tradition around Easter time. An egg toss is a picnic game. Egg rolling dates back to the 1600's. Eggs are blown, pushed with the nose, or rolled down a hill. Egg tapping is done by tapping one egg against another. The egg that survives the longest wins.

Return to Resources