Impact of oral contraceptive pills (mala-D) on melanophores of some fresh water fishes

Shashikanth MAJAGI, Shashikanth H MAJAGI


Aquatic toxicologists acknowledge effects of drugs on chromatophores are effectively used as indicator of pollution.  The movement of melanophores with in the skin cells is responsible for the pigmentation, which involves nervous system as well as endocrine system. An attempt is made to evaluate the impact of oral contraceptive pill (OCP:MALA-D) on melanophores of some fresh water fishes Viz., Common carp (Cyprinus carpio),Catla catla  and Labeo rohita .The present results revels that the OCP (Mala-D) have action on the melanophores and disturbing in their structure. In all the above mentioned fish species three types of melanophores were observed (Punctate,Stellate Reticulostellate).The number and shape of each type of melanophores significantly altered with the increase of time of exposure. In L. rohita the initiation of disappearance of melanophores observed in 96hrs of exposure. In the present investigation the results indicates that OCP (MALA-D) affects the external surface area and also endocrine system so melanophores indicate stress condition


: Melanophores, Oral contraceptive pill, Fresh water fishes, Cyprinus carpio), Catla catla, Labeo rohita

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