Comparative Analysis of Growth Performance of Mixed-Sex and Monosex Tilapia Population at differential Stocking Densities under Indian Perspective

By : Suman Bhusan Chakraborty , Debasis Mazumdar , Samir Banerjee

Page No: 33-41

Abstract
Stocking density is considered one of the important factors affecting fish growth. But, information related to impact of stocking density on growth performance of androgen-treated monosex tilapia population under the ecological conditions of Gangetic plains in West Bengal, India is limited. The aim of our study was to compare the growth potential of control and hormone-treated, sex reversed tilapia at various stocking densities and to determine an ideal stocking density for culture of such fish. Control and hormone treated fish were stocked separately in mesh cages at different stocking densities (1, 5, 10, 15, 25, 50, 75 and 100 fry / m3) and it was found that the highest growth was observed for the 50 fish / m3 groups for both the treatment categories. Moreover, the monosex androgen treated population showed much higher growth potential for all the density groups compared to the corresponding mixed-sex population. Thus, culture of hormone treated sex reversed tilapia at a density of 50 fish / m3 can be considered ideal for augmented production of the fish under Indian context.

Authors :
Suman Bhusan Chakraborty
Department of Zoology, Serampore College, India.

Debasis Mazumdar
Department of Agricultural Statistics, Bidhan Chandra Krishi Viswavidyalaya, India.

Samir Banerjee
Aquaculture Research Unit, Department of Zoology, University of Calcutta, India.