Abstract

BARRERO, Marinela; PAREDES, Ana; ROMERO, Oneida  and  POLEO, Germán A. Proximate composition and flesh quality of red bellied pacu, Piaractus brachypomus, cultured in two different closed systems. Zootecnia Trop. [online]. 2012, vol.30, n.3, pp.263-268. ISSN 0798-7269.

The objective of this study was to evaluate chemical and sensory characteristics of red bellied pacu (Piaractus brachypomus) cultured in two types of intensive systems, Heterotrophic System (HS) with zero water exchange and Recirculating Aquaculture System (RAS), and compare them to those cultured in a semi intensive flow-through system (control). Red bellied pacu were cultured for 192 days in 6 concrete tanks at the rate of 150 fish per tank in 4.8 m³ of water (31.25 fish/m³). Protein content were significantly different (P<0.05) between treatments. Moisture differed significantly between fish from RAS and control. No changes were observed for lipid contents; however, lipids profile showed that EPA and DHA disappeared on HS, and were constant on RAS. Sensory evaluation did not present significant differences among treatments regarding odor, flavor, texture and color

Keywords : Zero exchange system; heterotrophic system; Biofloc; Piaractus brachypomus.

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