抄録
Steady-state levels of lipid peroxide (LPO) in lateral muscles and liver of normal live fish, their elevation induced by xenobiotics and the distribution in lipid class were studied using yellowtail, red sea bream, carp, sweet fish, etc. LPO levels expressed in terms of meq/kg lipid, so to speak peroxide value (PV), vary in inverse proportion to the lipid contents; the higher the lipid content the lower the PV. Thus, PVs in live fish fluctuate with lipid contents. On the other hand, LPO levels expressed in terms of nmol/g tissue showed a steady-state reflecting physiological activity of tissue; 100-200nmol/g tissue in liver and dark muscle, and lower than 50nmol/g tissue in ordinary muscle. The levels was elevated by abdominal injection of CCl4 and a bacterial culture. In lipids of wild yellowtail tissues, nearly the same total amounts of LPO were distributed in neutral lipid and phospholipid fractions.