Table 2.
Key performance indicators of gilthead sea bream (Sparus aurata) juveniles fed low fishmeal diets containing 5% of porcine protein hydrolysate (PPH). Data are shown as the mean ± standard deviation. The asterisk denotes statistically significant differences between both experimental groups (t-test, p < 0.05).
| Control Diet | PPH Diet | |
|---|---|---|
| Survival (%) | 96.8 ± 2.7 | 97.6 ± 1.6 |
| SLi (cm) | 10.2 ± 0.08 | 10.3 ± 0.10 |
| SLf (cm) | 18.7 ± 0.31 | 19.0 ± 0.36 |
| BWi (g) | 26.0 ± 0.03 | 25.9 ± 0.11 |
| BWf (g) | 173.8 ± 4.14 * | 182.2 ± 4.37 |
| SGRBW (% BW day−1) | 2.06 ± 0.03 * | 2.12 ± 0.02 |
| K | 2.64 ± 0.07 | 2.67 ± 0.04 |
| FCR | 0.87 ± 0.06 | 0.93 ± 0.11 |
| FI (g feed fish−1) | 115.1 ± 4.5 * | 130.8 ± 8.7 |
Abbreviations: SLi, initial standard length; SLf, final standard length; BWi, initial body weight; BWf, final body weight; SGRBW, specific growth rate in terms of BW; K, Fulton’s condition factor; FCR, feed conversion ratio; FI, feed intake.