1988 Volume 36 Issue 1 Pages 53-64
Five different diets, sand lance, commercial pellet, moist pellet (commercial pellet: sand lance=1: 1), krill and sardine, solely fed on fugu Takifugu rubripes averaging 28.7g in weight for 60 days and its dietetically-induced changes were examined pathohistologically.
Effect of the diet on growth was higher in sand lance, moist pellet, krill, commercial pellet and sardine in this order. The highest mortality (13%) was caused by the sardine feeding. Remarkable fatty degeneration of the liver was observed in each group, but with a difference in size of fat drops formed according to kinds of diet. For the kidney, glomerular hypertrophy and hypertrophy of Bowman capsule's outer lobe in both the sardine and the commercial pellet groups were observed. For digestive tract, extreme vacuolar degeneration in tunica propria mucosa was observed in the sardine fed group. For muscle, granular degeneration and vacuolar degeneration were observed in the sardine fed group.
