Gulland F M, Ghebremeskel K, Williams G, Olney P J
Institute of Zoology, Zoological Society of London, Regent's Park.
Vet Rec. 1988;123(26-27):666-7.
The concentrations of vitamins A and E in the plasma of captive jackass penguins was studied in birds fed defined quantities of the vitamins. For a year, each of the 17 adult birds in the colony received a daily diet of 340 g of sprats and a vitamin supplement tablet, together providing 2.04 mg per day retinol equivalent and 185 mg per day alpha-tocopherol equivalent. The concentrations of plasma retinol and alpha-tocopherol and the alpha-tocopherol/total lipid ratio compared well with those recorded in wild populations of related species of penguin and the birds moulted and bred successfully.
研究人员对圈养的驴企鹅血浆中的维生素A和E浓度进行了研究，这些企鹅被喂食了定量的维生素。在一年的时间里，群体中的17只成年企鹅每只每天都接受340克沙丁鱼的日常饮食和一片维生素补充剂，每天总共提供2.04毫克视黄醇当量和185毫克α-生育酚当量。血浆视黄醇和α-生育酚的浓度以及α-生育酚/总脂质比率与相关企鹅物种野生种群中记录的浓度相当，并且这些企鹅成功换羽和繁殖。
