DIFFERENCE BETWEEN BROWN EGGS AND WHITE EGGS The main difference is in the breed of chicken. Nutritionally, they can be the same. That depends on feeding and management. White eggs are usually the most popular commercially because the chickens (usually white leghorns)are smaller and more feed efficient. The large commercial operations are "battery" or cage operations with one or two birds to a small cage. In home flocks they may be treated much differently.98% of commercial operations are cage raised according to the United Poultry Producers.