Blooie, to be fair, most eggs you find in a supermarket probably come from a commercial layer breed. Hy-Line is one of the biggest players in the field, and looking at their "product information", I'd say that holds true to the "breeds" they market. Sort of the same as saying that a chicken has feathers, someone will then bring up some weird variations of naked necks, or silkies. Or that a cat has fur, once again you get naked cats as an contradicting example. But it would probably be better to say that white eggs usually come from a Hy-Line W36, which has white lobes and uses less feed, or brown eggs usually come from a Hy-Line brown, which has red lobes and uses a bit more feed.
i have mostly brown egg layers but from what i have seen from my grams flocks white egg layers are smaller but they eat like little piglets so the cost is mostly the same in wasted feed but it is kind of funny people actually count that extra say half a cup that you would feed white egg layers vs. brown layers as a significant enough to write a article about it
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