Suitability and Production Performance of Oreochromis niloticus (GIFT) and Cyprinus carpio Under Mono and Mixed Culture System in Coastal Rice Field
2005
P.K. Sarker | S.U. Ahmed | S. Rahman | D. Dey
Present study deals with the suitability and production potential of two exotic fish species (GIFT: Genetically Improved Farm Tilapia; O. niloticus, C. carpio) as mono culture and mixed culture system of integrating a short term (mid August-mid December) brackish water aquaculture in the south-west coastal paddy fields of monocropped coastal saline soil at high rain fed region during monsoon season. Twelve paddy plots size ranged from 1320-2080 m<SUP>2</SUP> with peipheral trenches (40 cm depth and 45 cm width) and one meter deep ditch in 3% of the area were stocked with fish at a density of 5928 ha<SUP>-1</SUP> for mono and mixed culture (50+50%), after 105 days of rearing average weight and production rate of fish from monoculture of GIFT (T<SUB>1</SUB>), mixed culture of GIFT and C.carpio (T<SUB>2</SUB>) and monoculture of C. carpio were found 112.5 g, 479.36 kg; (114.2+110.6 g); (241.68+185.21 kg); 114.03 g, 398.95 kg ha<SUP>-1</SUP>, respectively. Higher significant production was found in case of GIFT monoculture in T<SUB>1</SUB> than that of other treatments. Highest net return was obtained from T<SUB>1</SUB> while lowest net return from rice monoculture crop farming in T<SUB>4</SUB>. So, rice fish farming was economically more rewarding than the rice mono-crop farming. Besides, GIFT monoculture plays a significant production potential for coastal paddy fields.
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