Devicyprin induced gonadal impairment in a freshwater food fish, Channa punctatus (Bloch).

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dc.contributor.authorSrivastava, Rajesh Ken_US
dc.contributor.authorYadav, Kamlesh Ken_US
dc.contributor.authorTrivedi, Sunil Pen_US
dc.date.accessioned2008-03-04en_US
dc.date.accessioned2009-06-02T03:56:30Z
dc.date.available2008-03-04en_US
dc.date.available2009-06-02T03:56:30Z
dc.date.issued2008-03-04en_US
dc.description.abstractSynthetic pyrethroids are the recent major class of broad spectrum, photostable, organic insecticides used in agricultural, domestic and veterinary applications and now account for more than 30% of global insecticide use. Cypermethrin is metabolized and eliminated significantly more slowly by fish than by mammals or birds, which may explain this compound's high toxicity in fish compared to other organisms. The present communication deals with histoanatomical alterations in the gonads of a local fresh water food fish, Channa punctatus exposed to 0.033 ppm (96 hr LC50 X 1/10) concentration of a synthetic pyrethroid, devicyprin (cypermethrin 25%) in aquatic medium of aged tap water for 15, 30 and 45 days respectively. In testis, exposure dependent histological damage has been observed in terms of vacuolization, condensation of spermatogonic cells, distortion of tubular epithelium, shrinkage of interstitial cells and general inflammatory responses. Longest exposure of 45 days has resulted in peculiar starry-sky appearance of the testicular tissue. Gross histo-anatomy of ovarian tissue reveals epithelial lesions, inflammatory responses, stromal hemorrhage, increased interstitium and shrinkage of yolk vesicles towards periphery These findings are quite suggestive of reproductive impairments leading to delayed gonadal maturity and adversely affecting processes of sperm production and ovulation and thus, the fish production.en_US
dc.description.affiliationEnvironmental Toxicology Laboratory, Department of Zoology, University of Lucknow, Lucknow, India.en_US
dc.identifier.citationSrivastava RK, Yadav KK, Trivedi SP. Devicyprin induced gonadal impairment in a freshwater food fish, Channa punctatus (Bloch). Journal of Environmental Biology. 2008 Mar; 29(2): 187-91en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/113420
dc.language.isoengen_US
dc.source.urihttps://www.geocities.com/j_environ_biol/en_US
dc.subject.meshAnimalsen_US
dc.subject.meshFemaleen_US
dc.subject.meshFresh Wateren_US
dc.subject.meshGonads --drug effectsen_US
dc.subject.meshHumansen_US
dc.subject.meshHydrogen-Ion Concentrationen_US
dc.subject.meshInsecticides --metabolismen_US
dc.subject.meshMaleen_US
dc.subject.meshPerciformes --physiologyen_US
dc.subject.meshPyrethrins --metabolismen_US
dc.subject.meshTemperatureen_US
dc.subject.meshTime Factorsen_US
dc.subject.meshToxicity Testsen_US
dc.subject.meshWater Pollutants, Chemical --metabolismen_US
dc.titleDevicyprin induced gonadal impairment in a freshwater food fish, Channa punctatus (Bloch).en_US
dc.typeJournal Articleen_US
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