Tocopherol affinity for serum lipoproteins of Japanese flounder Paralichthys olivaceus during the reproduction period

Changes in distribution of dietary α-tocopherol at 100mg per 100 g of diet to organic tissues and to serum lipoproteins were investigated on Japanese flounder Paralichthys olivaceus. α-tocopherol had been transported to and preserved more positively in the gonad during the reproduction period. During maturity serum α-tocopherol had partly combined with the vitellogenin-like parts that diminished after the spawning period. Conversely, serum α-tocopherol after the spawning period partly combined with lipoprotein that increased after the spawning period. The prosperity and decline of different types of lipoproteins induced α-tocopherol distribution changes at the end of the spawning period.