Performance of pacific white leg shrimp fed an open-source marine resource-free diet under commercial conditions

Pacific white leg shrimp were stocked (150 PL m-3) into one of four plastic-lined 1000 m3 (0.1 ha) ponds. Ponds randomly fed two diets in duplicate: a commercial feed (Grobest® Vista Eco), or an open formula, experimental, fishmeal and fish oil-free diet (F3). Shrimp by hand automatic feeders using tables for 56 days. Sub-samples (n = 50) weighed weekly from each pond to evaluate growth adjust feeding rates. Following harvest, no differences observed between survival. Combined biomass was 2045.0±45.96 kg (S.D.) 2302.5±28.99 F3 respectively. FCR 1.15±0.00 1.03±0.01 (P< 0.05). Individual significantly 0.05) heavier at trial termination with animals the weighing 18.03±0.24 g versus 23.25±0.84 Total hemocyte counts 33.26±0.46 33.88±0.72, that semi-granular cells 20.19±1.65 18.72±0.81, granular cells, 15.20±1.39 15.56±0.15, hyaline 64.62± 3.01 65.72±0.96, phenoloxidase activity, 56.87±6.12 50.29±0.55, A basic economic analysis indicated increased profitability (US$7362.43 US$10665.62) return on investment (ROI) 64.5% 89.8% There samples proximate composition, cooked tail color as assessed BASF Salmon Color Fan texture, determined texture analyzer. Results this unconditionally demonstrate practicality cultivating marine resource-free-based without impacting performance consumer acceptability, while returning increasing ROI.