Volume : 6, Issue : 6, June - 2017

CHROMIUM, AN INDUSTRIAL EFFLUENT INDUCED CHANGES IN CORBOHYDRATE METABOLISM IN FRESH WATER CARP FISH CATLA CATLA

Dr. P. Ranganatham

Abstract :

<p>&nbsp;<b style="text-align: justify;"><span style="font-size:13.0pt;line-height:115%;font-family:&quot;Times New Roman&quot;,serif">Catla catla</span></b><span style="text-align: justify; font-size: 13pt; line-height: 115%; font-family: &quot;Times New Roman&quot;, serif;">, the major fresh water carp fish is a very rich source of protens, carbohydrates and lipids, because of its high nutritive value it has great demand in the market. Chromium, an industrial effluent from electroplating, paints, dye industries etc., into the fresh water aquatic habitats leads to bioaccumulation affecting human health through biomagnifications. The present study evaluates toxicity of trivalent and hexavalent chromium on biochemical constituents like blood glucose, liver and muscle glycogen content in Catla<i> catla </i>exposed to sublethal concentrations for various periods (1, 8, 16 and 32days). In carbohydrate metabolism, the blood glucose level significantly decreased at day1and 8 in the fish exposed to trivalent chromium, But a significant increase and decrease was observed at days 16and32. In the fish exposed to hexavalent chromium also a significant decrease in the blood glucose was observed at day 1 and 8 followed by a significant increase at day 16 and decrease at day 32. The liver and muscle glycogen level decreased at all exposure periods in fish exposed to both trivalent and hexavalent chromium except at day 32 of trivalent chromium there is an insignificant increase was observed.</span></p> <p class="MsoNormal" style="margin-bottom:12.0pt;text-align:justify;mso-layout-grid-align:&#10;none;text-autospace:none"><span style="font-size:13.0pt;line-height:115%;font-family:&#10;&quot;Times New Roman&quot;,serif"><o:p></o:p></span></p>