IJSRSET1848180 | Received : 10 June 2018 | Accepted : 20 June 2018 | May-June-2018 [(4) 8 : 674-681] © 2018 IJSRSET | Volume 4 | Issue 8 | Print ISSN: 2395-1990 | Online ISSN : 2394-4099 Themed Section : Engineering and Technology 674 Histological Observation in the Ovary of Ornamental Fishes with Reference to Natrum Muriaticum C. Sudha 1 , V. Gokula 2 1 Research Scholar, PG and Research Department of Zoology, National College, Tiruchirappalli, Tamilnadu, India 2 Assistant Professor, PG and Research Department of Zoology, National College, Tiruchirappalli, Tamilnadu, India ABSTRACT The present study is aimed to determine the efficacy of natrum muriaticum on ovary of female ornamental fishes like Goldfish, Rosy barb, White Molly and Guppy. The histological sections of ovaries show large number of oocytes in various stages of development. Based on changes in ovary, four oocyte stages have been recorded viz. primary oocyte stage, cortical alveolus stage, vitellogenic stage and mature oocyte stage. Depending upon the stages of oocytes in experimental animals it shows that natrum muriaticum has a greater influence in reproductive cycle. The study therefore suggested that natrum muriaticum has a significant effect on the ovaries and advances the breeding activity faster than the control fishes. Keywords: Ornamental fish, Natrum muriaticum, Ovary, Histological changes. I. INTRODUCTION Fishes one of the most beautiful and fascinating living organism to watch, a plentiful source of protein-rich food, a means of control for mosquito-borne diseases and a potential tool in research (Harishanker et al., 1997).Studies on reproductive cycle of fishes are of great importance in maintenance of healthy fish population in any water system. Moreover, it has been well established that in most of teleosts the ovaries undergo fairly regular changes. But the variation was observed in different fish species under different environmental conditions (Gadekar, 2014). To get a good quality seed, it is desirable to have in-depth knowledge on the reproductive biology of fish, so that the exact timing of spawning can be determined. Availability of such information, to a great extent can help a fish farmer to conduct a successful venture induced breeding (Agarwal et al., 2001 and Gogoi et al., 2013). The present study is done to find efficacy of natrum muriaticum on induced breeding of the commercially important fishes like Goldfish, Rosy barb, White Molly and Guppy. Histological observation of the ovaries was attempted by using homeopathy preparation natrum muriaticum of 30c potency and its effects on reproduction. II. MATERIALS AND METHODS The selected mature female fishes like goldfish, rosy barb, white molly and guppy were treated with natrum muriaticum 30 c potency in water medium. The natrum muriaticum solution of dilution namely 30 centesimal (30C) was brought from Trichy Homeo Medicals, Trichy. The above mentioned dilution was preferred as it is known as the typical potency with peculiar potenzing effect (Visakan, 2000). From natrum muriaticum 30 centesimal potency, 0.025%