Volume 47
Polyculture trials involving red tilapia, armoured catfish (hoplosternum littorale) and freshwater prawn (macrobrachium rosenbergii) in earthen ponds in trinidad.
Authors
De Souza, G.; Gabbadon, P.W.; Titus, A.S. Download PDF Open PDF in BrowserOther Information
Date: 2005
Pages: 29-38
Event: Proceedings of the Forty Seventh Annual Gulf and Caribbean Fisheries Institute
City: Fort Pierce, Florida
Country: USA
Abstract
Polyculture trials were conducted under semi-intensive conditions in earthen ponds in Trinidad using the following combinations of species: (i) red hybrid tilapia and armoured catfish (Hoplosternum littorale); (ii) freshwater prawn (Macrobrachium rosenbergii) and armoured catfish; and (iii) tilapia and prawn. Stocking densities were: tilapia 25000 ha-1; catfish 30000 - 50000 ha-1; and prawn 10000 - 100000 h-1. A 35% protein diet of pelleted ration in floating (for tilapia) and sinking (for catfish and prawn) forms were fed as a percentage of estimated biomass. Growout times approximated 5.5 months.\Average maximum yields were as follows: tilapia and catfish 27614 kg ha-1 yr-1; prawn and catfish 12622 kg ha-1 yr-1; and tilapia and prawn 24176 kg ha-1 yr-1.