In order to contribute to a better assessment of the danger to man involved in the use of the antioxidant DPPD as a feed-additive to poultry mashes, its content has been determined in eggs and in the organs of chickens and laying hens fed different levels of this compound.The maximum DPPD level of eggs and organs seems t o be reached after feeding for 2 weeks, while practically all stored DPPD disappears in z weeks after the feeding of DPPD has been stopped.The absolute amount of DPPD deposited in eggs and in the carcass of birds fed the usual amount (o~o125~//) of antioxidant seems t o be very small.DPPD is accumulated mainly in the liver and in body fat.