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- W3201764441 abstract "Stocking density is considered a priority topic in aquacultureresearch due to its bearing on the welfare of farmed fish and the need forfuture recommendations governing stocking density management on fishfarms. This study was carried out to investigate the growth performanceand feed utilization response of sea bass (Dicentrarchus labrax) todifferent stocking densities. Two duplicate groups of sea bass (meanBW=32.83 g) were reared in six cages (2 m3 each) suspended at naturalpond with a proximate area of 20 hectare at three stocking densities (30,45 and 60 fish/m3 equal to 1.0, 1.5 and 2.0 kg/m3) for 225 days.Significant differences (P≤0.05) on final fish weight, weight gainand daily gain were observed. Fish reared at the highest densities (60/m3)had the lowest mean final body weight (225 g) while those of the lowestdensities (30/m3) showed the highest mean final body weight (270 g)while (45/m3) are in between. The differences between the lowest andhigher density was 20%. A similar tendency was observed for SGR, 0.85and 0.92 in the highest and lowest densities, respectively.Significant difference in FCR were observed groups ranging from2.76 to 3.24 by about 17% between the lowest and highest density.Survival rate was insignificantly (P≤0.05) affected and was around 96%independently of the density and the period. Part of the mortalityobserved was due to fish jumping out of cages and other part aftersampling. Regarding economic efficiency the net returns of cageimproved with increasing density and the best net returns was observedwith the density 45/m3 followed by densities 60 and 30 fish/m3respectively.In conclusion the best density was 45 fish/m3 which improved by33% than the lowest density (30 fish/m3, one kg/m3) and 17% than thehighest density (60 fish/m3, 2.0 kg/m3) for economical evaluation." @default.
- W3201764441 created "2021-10-11" @default.
- W3201764441 creator A5008224976 @default.
- W3201764441 date "2010-01-01" @default.
- W3201764441 modified "2023-09-26" @default.
- W3201764441 title "EFFECT OF STOCKING DENSITY ON GROWTH PERFORMANCE AND FEED UTILIZATION OF SEA BASS (Dicentrarchus labrax) IN CAGES SUSPENDED ON NATURAL POND" @default.
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- W3201764441 doi "https://doi.org/10.21608/fjard.2010.195662" @default.
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