Table 8 Effects of fish meal replacement with FKW on growth and feed utilization of juvenile yellow catfish.
Index | Replacement of fish meal with different levels of FKW | |||
---|---|---|---|---|
0% (G0) | 10% (G15) | 30% (G30) | 50% (G50) | |
Initial body weight (IBW) g | 2.78 ± 0.11 | 2.72 ± 0.08 | 2.80 ± 0.06 | 2.79 ± 0.02 |
Final body weight (FBW) g | 28.50 ± 0.49b | 31.50 ± 0.18a | 30.80 ± 0.33a | 26.25 ± 0.57c |
Weight gain (WG) g | 25.72 ± 0.60b | 28.78 ± 0.15a | 28.00 ± 0.34a | 23.46 ± 0.57c |
Weight gain rate (WGR) % | 928.9 ± 59.0b | 1060.2 ± 29.2a | 1030.5 ± 16.5a | 839.6 ± 22.8c |
Specific growth rate (SGR)% | 4.16 ± 0.10b | 4.38 ± 0.04a | 4.28 ± 0.04a | 4.00 ± 0.04c |
Feed conversion ratio (FCR)% | 1.08 ± 0.02c | 0.96 ± 0.03b | 0.93 ± 0.01a | 1.17 ± 0.07c |
Protein efficiency ratio (PER) % | 2.48 ± 0.12c | 2.77 ± 0.07b | 2.99 ± 0.11a | 2.47 ± 0.04c |
Condition factor (CF) g/cm3 | 2.15 ± 0.17 | 2.25 ± 0.07 | 2.17 ± 0.21 | 1.95 ± 0.10 |
Survival ratio (SR) % | 100 ± 0.00 | 100 ± 0.00 | 100 ± 0.00 | 100 ± 0.00 |