Is there any nutritional difference between brown shelled and white-shelled eggs?
Shell colour in no way reflects a nutritional difference in an egg. The pigment laid down during shell formation is a result of the genetics of the bird and is directly correlated with feather colour. Simply put, brown hens lay brown shelled eggs and white hens lay white shelled eggs. 2. Why do some eggs have light yellow yolks and others dark yellow yolks? Yolk colour is determined by the ingredients used to formulate the hens diet. The pale yellow to orange coloured yolks that can be found in eggs around the world are due to varied levels of the xanthophyll pigment in the feed. For example, in the Canadian prairies, wheat and barley tend to be used as the energy portion of the diet and have low xanthophylls levels, therefore pale yellow yolks. In Eastern Canada, corn is the energy feedstuff of choice and has high levels of xanthophylls which creates a dark yolk. 3. How long does it take the hen to form and lay an egg? A hen will release an ova (yolk) once every 24 hours into the ovid
