Effect of Fluoride on Catalase Activity in Silkworm (Bombyx mori)

Effect of fluoride on catalase activity in silkworm (Bombyx mori)was studied by adding fluoride to the silkworms′ artificial feed.Results showed that the catalase activity in the hemolymph of the silkworms significantly increased with the amount of fluoride added in the feed.In fluoride poisoned silkworms,it could not be reduced to a normal level just by feeding them on fluoride free diet or on fluoride free diet and fluoride added diet alternately.Addition of lime to the artificial feed decreased the effect of fluoride on catalase activity in hemolymph of the silkworms.