Table 1.
Growth performance and feed utilization of juvenile barramundi (initial body weight, 12.23 ± 0.41 g) fed tuna hydrolysate (TH) included diets at various levels for 8 weeks.
| Parameters | Experimental diets | ANOVA P | ||||
|---|---|---|---|---|---|---|
| Control | TH05 | TH10 | TH15 | TH20 | ||
| FBW (g) | 78.17b ± 1.17 | 85.37a ± 1.79 | 85.05a ± 1.08 | 81.72ab ± 1.21 | 80.67ab ± 1.60 | 0.021 |
| SGR (%/d) | 3.31b ± 0.03 | 3.47a ± 0.04 | 3.46a ± 0.02 | 3.39ab ± 0.03 | 3.37ab ± 0.04 | 0.020 |
| FI (g/fish/day) | 1.46 ± 0.01 | 1.47 ± 0.02 | 1.49 ± 0.01 | 1.47 ± 0.01 | 1.46 ± 0.01 | 0.831 |
| FCR | 1.24 ± 0.03 | 1.13 ± 0.03 | 1.13 ± 0.03 | 1.19 ± 0.02 | 1.20 ± 0.03 | 0.056 |
| Survival (%) | 100.00 ± 0.00 | 100.00 ± 0.00 | 98.33 ± 1.67 | 98.33 ± 1.67 | 96.67 ± 1.67 | 0.512 |
Different superscript letters (a,b,c) in the same row denote significant differences (p < 0.05). Data were represented as mean ± SE.
FBW: mean final body weight (g).
SGR: specific growth rate = [(ln final body weight − ln (pooled initial body weight))/days] × 100
FI: feed intake = dry feed consumed/fish number.
FCR: feed conversion ratio = dry feed fed/wet weight gain.
Survival (%) = (number of final fish − number of initial fish)/number of initial fish × 100.