Effects of Stocking Density on Production and Economics of All-Male Tilapia (Oreochromis niloticus) Culture in a Rain Fed Rice-Fish Ecosystem

Effects of stocking density on the growth, production, and economics of all-male tilapia (Oreochromis niloticus) were investigated in a rain-fed rice-fish ecosystem for a period of 120 days. Fish were stocked at the rate of 4000, 5000, and 6000 ha −1 in treatments T 1 , T 2 , and T 3 , respectively....

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Bibliographic Details
Published in:Journal of applied aquaculture 2014, Vol.26 (1), p.60-70
Main Authors: Mridha, M. A. R., Hossain, M. A., Azad Shah, A. K. M., Uddin, M. S., Nahiduzzaman, M.
Format: Article
Language:English
Subjects:
all male tilapia
Aquaculture
Aquatic ecosystems
Brackish
economic returns
Fish stocking
Oreochromis niloticus
Physical growth
rain fed ecosystem
Stocking density
Survival analysis
Tilapia
total biomass
Water quality
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Summary:Effects of stocking density on the growth, production, and economics of all-male tilapia (Oreochromis niloticus) were investigated in a rain-fed rice-fish ecosystem for a period of 120 days. Fish were stocked at the rate of 4000, 5000, and 6000 ha −1 in treatments T 1 , T 2 , and T 3 , respectively. Water quality was suitable for fish culture. Significantly higher growth was observed in T 1 as compared to other treatments. SGR ranged from 1.26 to 1.51. Survival varied between 79% and 88% with treatment T 1 producing the highest survival. The highest benefit:cost ratio was obtained in T 2 followed by T 1 and T 3 . The best fish production (457.21 kg ha −1 ) and economic return for the culture period was obtained at 5000 fish ha −1 .
ISSN:1045-4438
1545-0805
DOI:10.1080/10454438.2014.877744