>*Designer-eggs* -- eggs from hens that are fed no fauna just a special
>formula of grains & seeds  in order to reduce the egg's cholesterol,
>inhance flavor, decrease saturated fat and increase the amount of
>vitamin E -- also have a radiant orange yolk.

when i kept chickens,  the yolks were always a deep orange color, more than
yellow, and the hens ate plenty of fauna -- grubs, earwigs, whatever -- plus
weeds, grasses, and a mix of grains and seeds ("scratch", it's called).

JoAnn

also, i think the hardness of the shell tells you if the hen is getting
enough calcium or not.