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Yolk color is determine by the feed. Free range chickens can have a wide range of color. A high corn diet or free range hens eating lots of green can produce yellow skin and very dark orange egg yolks. My hens yolks get orange in the fall when they eat large amounts of squash in the garden. Eggs produced on a commercial farm often add pigmenting carotenoids to the feed because consumers equate dark yellow yolks with quality eggs.

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14y ago

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