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Chlorpyrifos-based commercial formulation: alterations in corpuscles of Stannius of catfish
by Ajai Kumar Srivastav, Sanjay Kumar Srivastava, Sarojni Tripathi, Diwakar Mishra, Sunil Kumar Srivastav
International Journal of Environment and Health (IJENVH), Vol. 4, No. 4, 2010
Abstract: Corpuscles of Stannius (CS) and serum calcium of Heteropneustes fossilis were studied after exposure to Chlorpyrifos-Based Commercial Formulation (CBCF) for short-term (1.76 mg L−1 chlorpyrifos) and long-term (0.44 mg L−1 chlorpyrifos) application. The fish were sacrificed after 24, 48, 72 and 96 hours in short-term experiment and after 7, 14, 21 and 28 days in long-term experiment. Hypocalcaemia was noticed in CBCF-treated fish after both short- and long-term exposures. In CBCF-treated H. fossilis, AF-positive cells of CS exhibit increased granulation after 72 and 96 hours, the nuclear volume of these cells remains unchanged. The AF-negative cells of CS of CBCF-treated fish exhibit a slight increase in their nuclear volume after 96 hours. After 21 and 28 days, AF-positive cells of CS show increased granulation. Nuclear volume of these cells exhibited a decrease after 21 and 28 days. A few degenerating cells are also noticed. Nuclear volume of AF-negative cells of CS of CBCF-treated fish increase after 21 and 28 days.
Online publication date: Tue, 14-Dec-2010
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