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The study was conducted to assess the growth and production of Thai sarpunti ( Puntius gonionotus ), tilapia ( Oreochromis niloticus ) and rui ( Labeo rohita ) under monoculture and polyculture systems in seasonal waterbodies of haor environment. Selected waterbodies were divided into three treatments as T 1 (sarpunti), T 2 (sarpunti+tilapia) and T 3 (sarpunti+tilapia+rui). Each treatment had three replicates and same stocking density (40,000 ha -1 ) of fishes was maintained in all treatments. Stocked fishes were fed with rice bran and wheat flour as supplemental feed at a decreasing rate of 10-5% of total biomass for twice daily. The highest final weight of sarpunti (122.32 g), tilapia (102.58 g) and rui (140.0 g) was obtained in T 1 , T 2 and T 3 , respectively. Significantly higher production of sarpunti was secured in T 1 (3,446.13 kg ha -1 ) than T 2 (2,942.6 kg ha -1 ) and T 3 (2,804.1 kg ha -1 ), and tilapia production was better in T 2 (2,786.07 kg ha -1 ) than T 3 (2,172.52 kg ha -1 ). Combined production of sarpunti, tilapia and rui was significantly (p<0.05) higher in T 3 (8,341.41 kg ha -1 ) followed by T 2 (5,728.67 kg ha -1 ) and T 1 (3,446.13 kg ha -1 ). Therefore, polyculture practice of sarpunti, tilapia and rui may be suggested to disseminate at farmers’ level for boost up fish production.

journal of scientific research

Effect of Monoculture and Polyculture Systems on Growth and Production of Fishes in Seasonal Waterbodies of &lt;i&gt;Haor&lt;/i&gt; Villages, Sunamganj District