PURPOSE: A feed additive using orostachys japonicus, a feed composition containing thereof, and functional eggs obtained by using thereof are provided to secure the excellent anti-oxidant activity of the eggs. CONSTITUTION: The functional eggs are obtained by feeding chicken with a feed composition containing 100parts of formula feed by weight, and 0.1~5parts of feed additive by weight including orostachys japonicas powder or an orostachys japonicas extract. The functional eggs contain flavonoid.
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