Table 2. Growth performance, survival, feed utilisation and basic biometry over the 7-week experimental period.
| FO | WCO | ECO | |
|---|---|---|---|
| Final weight (g) | 196.5 ± 26.3 | 200.5 ± 28.5 | 207.9 ± 26.5 |
| Total length (cm) | 25.0 ± 1.0 | 24.8 ± 1.4 | 25.0 ± 1.0 |
| Survival (%) | 100.0 ± 0.0 | 100.0 ± 0.0 | 100.0 ± 0.0 |
| HSI | 0.9 ± 0.1 | 0.9 ± 0.1 | 0.9 ± 0.1 |
| VSI | 9.5 ± 0.9 | 9.6 ± 1.2 | 9.9 ± 0.7 |
| FI (g/tank) | 4200.0 ± 155.0 | 4203.0 ± 97.0 | 4257.0 ± 216.0 |
| FCR | 0.9 ± 0.0 | 0.9 ± 0.0 | 0.9 ± 0.0 |
| SGR | 1.9 ± 0.0 | 1.9 ± 0.0 | 2.0 ± 0.1 |
| k | 1.3 ± 0.0 | 1.3 ± 0.0 | 1.3 ± 0.0 |
Data are means ± SD (n = 3). There were no significant differences between treatments in any parameter. FCR, feed conversion ratio; FI, feed intake; HSI, hepato-somatic index; k, condition factor; SGR, specific growth rate; VSI, viscera-somatic index.