Abstract

ANTIOXIDANT STUDIES ON SONATA (FUNGICIDE) INDUCED STRESS IN CHANA PUNCTATUS AND MACROBRACHIUM ROSENBERGII

S. Swetha* and Dr. E. Narayana

Abstract

Acute toxicity tests (48hr, 72hr, 96 hr LC50& Lethal concentration) of Sonata were conducted with two species (fish and prawn) viz. Chana punctatus and Macrobrachium rosenbergii. At the end of each trail, the animals were dissected and their organs viz. Liver, Gill and Brain were isolated for determination of antioxidant activity. Sonata was significantly more toxic in prawn than fish with 96hr LC 50 values of 12.094ppm and 15.399ppm respectively. Activity of SOD, Catalase, GSH and LPO increased with increasing sonata concentrations in the test mediums. The fish and prawn were kept in control conditions(without sonata stress) showed maximum activity of catalase, SOD,GSH and LPO. Among fish and prawn organs Liver appeared as a target organ that accumulates significantly higher contents of sonata followed by that of gill and brain.

Keywords: Acute toxicity tests Chana punctatus and Macrobrachium rosenbergii.