Initial Individual     Fish   Feed  
Biomass weight Yield (kg/m3) growth Survival Daily Peak† Total  
(kg/m3)* (g/fish) Gross Net (g/d) (%) (g/m3/d) (kg/m3) FCR††
1.4 828.9a 5.2b 3.8b 4.0a 97.3 50b 60b 7.7b 1.5
2.1 771.0ab 7.1a 5.0a 3.6ab 96.7 69a 82a 10.6a 1.5
2.8 658.4b 8.2a 5.4a 2.9b 97.7 76a 92a 11.7a 1.4
Pooled SE 34.1 0.3 0.2 0.2 0.01 3 3 0.4 0.1
ANOVA,
P >
F
0.032 0.001 0.001 0.022 0.658 0.001 0.001 0.001 0.615
*n=3 replicates per treatment.
†Period of peak feed consumption, weeks 24-37 (10 June-15 September).
††FCR=wet weight of feed/net fish yield.
Table 1: Least squares means (± SE) for individual weight at harvest, gross and net yields, net daily yield, survival, daily and peak feed consumption, total feed, and feed
conversion ratio (FCR) for stocker-size (217 g/fish) channel catfish stocked at 1.4-2.3 kg/m3 in an outdoor biofloc technology production system and grown for 154 d.
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