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Turkish Journal of Fisheries and Aquatic Sciences 2011, Vol 11, Num, 1     (Pages: 131-138)

Growth of Mixed-Sex and Monosex Nile Tilapia in Different Culture Systems

Suman Bhusan Chakraborty 1 ,Debasis Mazumdar 2 ,Urmi Chatterji 3 ,Samir Banerjee 3

1 Serampore College, Dept. of Zoology, West Bengal, India
2 Department of Agricultural Statistics, Bidhan Chandra Krishi Viswavidyalaya, India
3 University of Calcutta, Dept. of Zoology, West Bengal, India
DOI : 10.4194/trjfas.2011.0117 Viewed : 1996 - Downloaded : 4916 Growth of 17α-methyltestosterone treated monosex Nile tilapia, Oreochromis niloticus was compared with hormone untreated mixed-sex fish in four different culture systems. The experiment had 2 X 4 factorial design: the first factor was presence or absence of hormone treatment (monosex and mixed-sex fish), the second factor was related to culture system (cistern, flow-through, pen and pond). Fish were cultured under similar feeding regime and stocking density for six months and different growth parameters such as body weight, length, daily weight gain (DWG), specific growth rate (SGR), proximate body composition and survival rate were analyzed. Monosex tilapia showed significantly higher (P-value <0.05) weight, length, DWG, SGR and protein content than mixed-sex fish. Fish in Pond culture showed significantly higher (Pvalue <0.05) weight, DWG and protein content than fish in other 3 culture systems. Survival was not significantly different (P>0.05) among mixed-sex and monosex fish and between different culture systems. Monosex tilapia in pond culture system showed the highest weight, DWG and protein content while mixed-sex tilapia in cistern culture system showed the lowest weight, DWG and protein content. Considering the results of this study, culture of monosex tilapia in earthen ponds might be considered the ideal method for tilapia culture in India. Keywords : Oreochromis niloticus, monosex culture, growth in different culture systems