Showing items related by title, author, creator and subject.

• Polyculture of bighead carp, common carp and Nile tilapia in cages in Laguna lake 

  Tabbu, Marlo Y.; Lijauco, Melchor M.; Eguia, Ruel V.; Espegadera, Corazon C. (Fisheries Research Society of the Philippines, 1986)

  Increasing fish production through polyculture was clearly demonstrated to the fishfarmers in Laguna lake. The rearing of different species of fish of proper number and species combinations had resulted to the efficient utilization of all the available food niches/zones in the lake. Fish production is site specific in Laguna lake. Wide variation in growth increment and fish yield were observed among the different bays and among farm sited within a bay. The final mean weights of the fish species were 355 mg to 2300 g for bighead carp, 32 g to 103.3 g for tilapia and 8.3 g to 1800 g for common carp.
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  Demonstration of tilapia-carp polyculture in lowland and highland farms 

  Palma, Adelaida L.; Pol, Romy M.; Diamante, Adan Samuel (Bureau of Agricultural Research, Department of Agriculture, 2007)

  Technology demonstration was conducted in three selected lowland freshwater ponds in Lucban, Quezon and in three highland ponds in Ifugao. The ponds varied in location, size, water source, and operators. The polyculture system included 60% Nile tilapia, 30% common carp, and 10% bighead carp, seeded at a density of 5/m². Two lowland ponds had total production of 4,737 and 4,416 kg/ha-yr (8.83 kg/m³ and 6.77 kg/m³). One highland pond yielded 2,786 kg/ha-yr (11.14 kg/m³). Survival rates were better in lowland areas, mostly because the farmer cooperators had better training and more experience. Costs-and-returns analysis showed high profitability of tilapia-carp polyculture. With proper management, polyculture can produce fish and increase farmers‘ incomes, even during the off-season for traditional crops.
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  SEAFDEC's bighead carp hatchery technology 

  Dagoon, N. J. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1999)