Carbofuran toxicity on total lipids and free fatty acids in air breathing fish during exposure and cessation of exposure--in vivo.

Clarias batrachus, fish were exposed to sublethal concentration of commercial carbofuran for 144 hr. After 144 hr of exposure period, fish were transferred to fresh water and kept in the same for 144 hr in order to study the effect of carbofuran after cessation of intoxication. Total lipids and free fatty acids were determined in liver, muscle kidney and ovary at an interval of 24, 72 and 144 hr during exposure and after the release into toxicant free water. Total lipids increased in all the tissues throughout the exposure period, followed by decrease during depuration period. The results showed an alteration in free fatty acid content in different tissues of the fish. The elevated levels returned to almost control values after transfer of fish into carbofuran free water.