Table 4. Growth performance and feed utilization and survival of red seabream (Pagrus major) fed the three experimental diets for 8 weeks
| FBW (g) | WG (%)1) | SGR (%)2) | FI (g/fish)3) | FE (%)4) | PER5) | SUR (%) |
CON | 15.8 ± 0.45a | 243 ± 5.4a | 2.20 ± 0.03a | 16.6 ± 0.54a | 61.3 ± 6.26 | 1.43 ± 0.13 | 81.7 ± 5.46 |
MX20 | 16.2 ± 0.76a | 257 ± 12a | 2.27 ± 0.06a | 14.9 ± 1.15ab | 75.7 ± 5.72 | 1.58 ± 0.12 | 90.8 ± 4.64 |
MX40 | 12.5 ± 0.52b | 173 ± 16b | 1.78 ± 0.10b | 13.4 ± 0.56b | 57.2 ± 6.62 | 1.24 ± 0.15 | 94.2 ± 3.00 |
Values are the mean of triplicate groups and are presented as mean ± SE.
Values with different superscripts in the same row are significantly different (p < 0.05). The lack of superscript letters indicates no significant differences among treatments.
Weight gain (WG) = 100 × (final mean body weight – initial mean body weight) / initial mean body weight.
Specific growth rate (SGR) = [(loge final body weight – loge initial body weight) / days] × 100.
Feed intake (FI) = dry feed consumed (g) / number of fish.
Feed efficiency (FE) = (fish wet weight gain / feed intake) × 100.
Protein efficiency ratio (PER) = wet weight gain / total protein given.
CON, considered as control; FBW, final mean body weight; SUR, survival.