Table 3. Growth performance, feed utilization and survival of the olive flounder (Paralichthys olivaceus) fed the six experimental diets for 12 weeks
| FBW1) | WG2) | SGR3) | FI4) | FCR5) | PER6) | Survival (%) |
| Thr0.4 | 23.2 ± 3.1b | 2.41 ± 14.9b | 0.02 ± 0.17b | 16.2 ± 3.4b | 5.47 ± 0.70a | 0.37 ± 0.05c | 30.0 ± 31.1b |
| Thr0.8 | 39.2 ± 0.5a | 67.8 ± 1.6a | 0.62 ± 0.01a | 39.3 ± 0.2a | 2.46 ± 0.08b | 0.81 ± 0.03a | 97.3 ± 4.6a |
| Thr1.2 | 39.6 ± 0.3a | 68.0 ± 0.1a | 0.62 ± 0.00a | 42.5 ± 0.9a | 2.63 ± 0.05b | 0.76 ± 0.02ab | 97.3 ± 2.3a |
| Thr1.8 | 38.7 ± 0.3a | 64.6 ± 2.0a | 0.59 ± 0.01a | 40.1 ± 1.4a | 2.64 ± 0.03b | 0.77 ± 0.01ab | 100 ± 0.0a |
| Thr2.0 | 37.5 ± 0.5a | 65.6 ± 0.5a | 0.60 ± 0.00a | 40.2 ± 1.2a | 2.69 ± 0.06b | 0.75 ± 0.02b | 98.7 ± 2.3a |
| Thr2.3 | 38.5 ± 1.1a | 65.4 ± 5.9a | 0.60 ± 0.04a | 41.3 ± 1.6a | 2.68 ± 0.12b | 0.75 ± 0.03b | 94.7 ± 2.3a |
| Pr > F* |
| ANOVA | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Linear | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
| Quadratic | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.003 |
Values are mean of triplicate groups and presented as mean ± SD.
Values with different superscripts in the same column are significantly different (p < 0.05).
FBW (g).
WG (%) = [(FBW – initial body weight) / initial body weight] × 100.
SGR (%) =100 × [(loge FBW – loge initial body weight) / days].
FI (g/fish) = dry feed consumed (g) / no of fish.
FCR = dry feed fed / wet WG.
PER = wet WG / total protein given.
Significance probability associate with the F-statistic.
FBW, final body weight; WG, weight gain; SGR, specific growth rate; FI, feed intake; FCR, feed conversion ratio; PER, protein efficiency ratio; Thr, threonine; AVOVA, analysis of variance.