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Abstract
Matured and acclimatized specimens of Heteropneustes fossilis were exposed to 30 ppm cupric chloride. The fish were sacrificed on 15th day of ovaries and were excised out. Histological preparation by the method of OFG staining was studied. Histological observations were observed that there yolk investment appeared cracked and broken due to the treatment with various reagents during paraffin impregnation. The young ova proliferated from stroma appear quite small and without a distinction of core. Most of ova were showed quite thick encapsulation. Vitellogenesis was much pronounced and delayed in liberation of ova was expected.
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References
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References
Davis 2000. Effect of zinc glucomate on the serum level in post menopausal women. Environ. Toxicol. Chem 22 (10): 2397 – 2402
Ghosh, A. and Ker, A.B. 1952. Seasonal changes in the gonads of the common Indian cat fish, Heteropneustes fossils. Proc. Zool. Soc. Bengal, 5, 29-51.
Gupta, A.K., Sajini, C.B. and Champawat, M.S. 1994. Acute toxicity of Cu- Dc- Pb - Zn to fresh water teleost, Poecilia reticulate. Proc. IIIrd Asian fish Forum, 499-502.
Speranza, A.W., Robert, J., Seeley, V.A. and Alfered, P. 1977. The effect of sublethal concentration of zinc on reproduction in the zebra fish, Branchyclonio rario (Ham) Environ, Pollut. 2 (13): 217-222.
Stein, X., Christine, R. Mauricette, G.B., Michele, R. and Mare L. 1997. Effect of copper chloride in vitro and in vivo on the hepatic EROD activity in the fish, Dicentrachus labrax. Environ. Toxicol. Chem. 16, 214-219.
Wexler, P. 1998. Encyclopedia of toxicology. Volume I, II, III Academic press, Sandiego, California.
Yadav, R.Y. and Singh, J.P.N. 2011. Effect of 2.4dichlorophenoxy acetic acid (2,4 D) on a ovary of a freshwater catfish, Heteropneustes fossilis. J. Exp. Zool.India, 14 91) 315-318.