D. Gayathri and L. Shakila
Abstract
Fresh water Major carp, Catla catla, were exposed to the plasticizer Triphenyl phosphate (TPP) for 72hrs and the LC50 value was determined to be 25 mg/L. The fishes were exposed to three different sub â lethal concentrations of TPP (0.25 mg/L, 0.5 mg/L and 1 mg/L) for a period of 15 days. Cholesterol and glucose content was observed from different tissues (gill, muscle and intestine) after exposure period. The results showed that there was a significant decline in the cholesterol and glucose level of gill, muscle and intestine with respect to increase in the concentration of TPP. The decrease in cholesterol and glucose levels in gill, muscle and intestine might be an indication of TPP toxicity stress which suppresses the activity of number of enzymes responsible for lipid and glucose transformation, thus affecting the metabolic cycle of Catla catla.