Abstract
The effect of three sublethal concentrations (5%, 10%, 15% v/v) of vegetable oil factory effluent on the alterations in the levels of isocitrate (ICDH), malate (MDH), lactate (LDH), glutamate (GDH) and glucose-6-phosphate (G-6-PDH) dehydrogenases, malic enzyme (ME), total lipids, total cholesterol, Free Fatty Acids, phospholipids and glycerides in the liver of the freshwater teleost. Heteropneustes fossilis (Bl.), during exposure for 150 days was studied. The liver of the effluent-exposed fish showed a significant decline in the activity of ICDH, MDH and G-6-PDH but a significant increase in GDH activity. However, in the case of LDH, the activity increased in the liver of the effluent-exposed male fish, while no significant alteration in the liver of the female fish was observed. Significant declines were noted in the levels of total lipids, total cholesterol, phospholipids and the glycerides, but a significant increase in the level of Free Fatty Acids in the liver of effluent-exposed fish. In most cases, the change in the biochemical constituent was dependent on the concentration of the effluent.
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