> IMHO they've also got a much nicer colour.
The colour is just an additive put in chicken feed. You can get colour charts for the egg colours.
The colour is just an additive put in chicken feed. You can get colour charts for the egg colours.
http://blog.chickenwaterer.com/2013/03/influencing-egg-yolk-...
The shell appears to be genetic: http://msue.anr.msu.edu/news/why_are_chicken_eggs_different_...