PN RC
Rearing technique Ponds Indoor tanks
Size of rearing per each basin (m3) 1,000 2
Replicates per treatment (n.) 3 3
Origin of water well water well water
Range of water temperature (°C) 12-30 18-25
Water flow rate (l/sec/t) 2-4 -
Initial weight (g) 5.1 ± 1.2 5.1 ± 1.2
Initial length (cm) 6.8 ± 1 6.8 ± 1
Condition factor (K) 1.62 1.62
Initial stocking density (n.fish/m3) 15 1,570
Initial stocking density (kg/m3) 0.0765 8,007
Feeding ratio (% b.w./d) 0.5-3.5 3-4
N. feed administration (n.meals/d) 2 2
Aeration/oxygen Present Present
Length of the trial (days) 181 181
Expected final density (kg/m3) >2 >30
Table 1: Main farming parameters adopted in the two fattening trials of common catfish.
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