Study of Iron, Inorganic Phosphate, Sodium, Potassium in Serum and its Effects on Reproduction of the Experimental Fish Clarias Batrachus

Abstract

Reproduction is a natural phenomenon governed by both the endocrine (intrinsic) and climatic (extrinsic) factors. The intrinsic factors mediate their effects through the hypothalamo-hypophysial-Gonad sub system operating as an organic axis bridging the ecological influence and Gonadal maturation. Temperature, light, rainfall etc. of the habitat and food supply appear to the predominant external factors influencing breeding periodicity, whereas, the condition of the Gonads and their secretions & the general condition of the body are the internal features which influence the physiology & psychology of the breeders to make the target organs responsible to external influences (Malhotra et.al., 1989). Among the climatic factors, temperature and/or day length (Photoperiod) are generally recognized as the most important cues in the timing of gametogenesis in fish species of temperate zone (Gillet et.al., 1978) but in sub-tropical region, when seasonal variations in the day length & temperature are relatively small both affects Gonadal recrudescence. In this paper we determine the Iron, Inorganic Phosphate, Sodium, Potassium in Serum and its Effects on Reproduction of the Experimental Fish Clarias Batrachus.