Changes in nitrogen metabolism of the freshwater fish Cirrhinus mrigala following exposure to cypermethrin.
We studied the effect of a synthetic pyrethroid insecticide, cypermethrin, on some aspects of nitrogen metabolism in the gills, liver, and muscle tissue of the Indian major carp, Cirrhinus mrigala. Free amino acid levels and protease activity showed an elevation in all tissues following exposure to lethal (5.13 microg/L) and sublethal (1.026 microg/L) doses of cypermethrin, with significant changes noticed on day 4. The normal condition was restored only at a sublethal concentration.
Prashanth
M S
MS
P G Department of Environment Management, Chh. Shahu Central Institute of Business Education and Research, University Road, Kolhapur 416004, Maharashtra, India. drmsp@rediffmail.com
David
M
M
D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D003530:Cyprinidae / Q000378:metabolism*; D004305:Dose-Response Relationship, Drug; D005880:Gills / Q000737:chemistry / Q000187:drug effects / Q000378:metabolism; D007306:Insecticides / Q000633:toxicity; D008099:Liver / Q000737:chemistry / Q000187:drug effects / Q000378:metabolism; D018482:Muscle, Skeletal / Q000737:chemistry / Q000187:drug effects / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism*; D010447:Peptide Hydrolases / Q000378:metabolism; D011722:Pyrethrins / Q000633:toxicity*
D000596:Amino Acids; D007306:Insecticides; D011722:Pyrethrins; C017160:cypermethrin; D010447:Peptide Hydrolases; D009584:Nitrogen