Nylon cage

Copper cage

Initial weight (g)

29.2 ± 6.7

29.2 ± 6.7             

Final weight (g)    

110.0 ± 1.25

114.1 ± 2.28

Weight gain (g)                    

80.8 ±     0.3

84.9 ± 1.3

Initial length (cm)

15.4 ± 1.0

15.4 ± 1.0             

Final length (cm)

22.2 ± 0.01

22.3 ± 0.11

Length gain (cm)

6.8 ± 0.02

6.9 ± 0.05

Survival (%)         

29.17 ± 1.20        

27.67 ±  2.41

FCR       

1.52 ± 0.45           

1.51 ± 0.13

SGR (%/day)       

0.72 ± 0.07           

0.75± 0.07

Condition factor (K)

1

1

Table 1: Growth performance of cod in nylon and copper cages. Means are ± SE. Unpaired T-tests showed no significant differences (P > 0.05) in any of the measured variables between cage types.
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