International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 6, Part A
Studies on the fecundity (F), gonadosomatic index (GSI) of Cyprinus carpio (Common carp) due to administration of hormonal doses PGE, Ovaprim and Ovatide at FSPC, Aurangabad, Maharashtra, India
Author(s): Dr. Mangala Bansilal Pawar, Dr. Quadri SA and Dr. Tingote Ravindra Shankar
Abstract: Fecundity (F) and Gonadosomatic index (GSI) of
Cyprinus carpio (Common carp) at fish seed production center at Aurangabad was estimated for a period during June to September months (2013-2015). During the present study the fish samples was within the range of 30cm to 60cm in length and 400g to 750g in weight. Fecundity and its correlation with body weight of
Cyprinus carpio upon administration of ovaprim, ovatide and pituitary gland extract, Average body wt ±SD and Average number of eggs ± SD, a±SD, b±SD, r, and Average relative fecundity±SD for both fecundity and gonadosomatic index were estimated. Fish body weight and weight of gonad gives the gonadosomatic index (G.S.I.). It is the ratio of fish gonad weight to body weight, it is particularly helpful in identifying days and seasons of spawning, as the ovaries of gravid females swiftly increase in size just prior to spawning. Gonadosomatic index of fish increases with maturation being maximum during peak period of maturity and abruptly declines after spawning. The development and growth of gonad simultaneously takes place in the fish and fish grows and the GSI is high. Present study ensured that the growth of fish, body weight and gonad development is correlated. Gonadosomatic index of fish is related to spawning and reproduction of fish. At maturity stage fish has maximum GSI value and after spawning GSI value declines. The GSI value also related to amount of food available to them in water and temperature of water also. So generally during the breeding season of such selected fish shows maximum GSI value and after spawning it is reduced. In this study we have carried out GSI of male and female fish simultaneously. When GSI of both sexes were we came to know that maximum values of GSI have occurred almost at the same time in both sexes and after spawning it is recorded that there was a great decrease in GSI values.
DOI: 10.22271/fish.2020.v8.i6a.2359Pages: 39-41 | 766 Views 170 DownloadsDownload Full Article: Click Here
How to cite this article:
Dr. Mangala Bansilal Pawar, Dr. Quadri SA, Dr. Tingote Ravindra Shankar.
Studies on the fecundity (F), gonadosomatic index (GSI) of Cyprinus carpio (Common carp) due to administration of hormonal doses PGE, Ovaprim and Ovatide at FSPC, Aurangabad, Maharashtra, India. Int J Fish Aquat Stud 2020;8(6):39-41. DOI:
https://doi.org/10.22271/fish.2020.v8.i6a.2359
