Table 2. Survival, weight gain and specific growth rate (SGR) of rockfish fed the experimental diets containing various concentrations of jack mackerel meal (JMM) for 8 weeks
Experimental diets | Initial weight (g/fish) | Final weight (g/fish) | Survival (%) | Weight gain (g/fish) | SGR1) (%/day) |
JMM0 | 5.3 ± 0.00 | 23.1 ± 0.06e | 100.0 ± 0.00 | 17.8 ± 0.07e | 2.64 ± 0.006e |
JMM1 | 5.3 ± 0.01 | 24.3 ± 0.02d | 100.0 ± 0.00 | 19.0 ± 0.03d | 2.72 ± 0.005d |
JMM3 | 5.3 ± 0.00 | 24.8 ± 0.05c | 100.0 ± 0.00 | 19.5 ± 0.05c | 2.76 ± 0.004c |
JMM5 | 5.3 ± 0.01 | 26.0 ± 0.04b | 100.0 ± 0.00 | 20.7 ± 0.03b | 2.84 ± 0.002b |
JMM10 | 5.3 ± 0.01 | 28.1 ± 0.08a | 100.0 ± 0.00 | 22.8 ± 0.07a | 2.98 ± 0.003a |
Values (means of triplicate ± SE) in the same column with same superscript letter are not significantly different (p > 0.05).
SGR (%/day) = (Ln final weight of fish – Ln initial weight of fish) × 100 / days of feeding trial.