Table 2.
Effect of dietary curcumin (CUR) on the growth performance of O. niloticus.
| IBW (g/fish) |
FBW (g/fish) |
ADWG (g/fish) | TWG (g/fish) | TFI (g/fish) | FCR | PER | PPE | SGR | |
|---|---|---|---|---|---|---|---|---|---|
| CUR0 | 41.8 | 81.2 b | 0.56 b | 39 b | 51 | 1.30 ab | 2.2 | 1.2 | 0.95 b |
| CUR200 | 41.8 | 93.4 a | 0.74 a | 51.5 a | 64.7 | 1.26 ab | 2.2 | 1.2 | 1.15 a |
| CUR400 | 41.3 | 96 a | 0.78 a | 54.7 a | 60 | 1.10 b | 2.3 | 1.3 | 1.20 a |
| CUR600 | 41.4 | 81.7 b | 0.58 b | 40 b | 51.5 | 1.28 ab | 2.2 | 1.2 | 0.97 b |
| CUR800 | 41.4 | 83 b | 0.59 b | 41.5 b | 58.7 | 1.41 a | 2 | 1.1 | 0.99 b |
| SEM | 1.46 | 2.18 | 0.03 | 2.18 | 1.95 | 0.03 | 0.04 | 0.02 | 0.03 |
| Linear Reg. # | 0.14 | 0.18 | 0.22 | 0.22 | 0.80 | 0.16 | 0.31 | 0.53 | 0.32 |
| Quadratic Reg. # | 0.51 | ≤0.01 | ≤0.01 | ≤0.01 | 0.14 | ≤0.01 | 0.13 | 0.12 | ≤0.01 |
# The regressions were considered significant at p < 0.05. IBW, initial body weight; FBW, final body weight; ADWG, average daily weight gain; TWG, total body weight gain; TFI, total feed intake; FCR, feed conversion ratio; PER, protein efficiency ratio; PPE, protein productive efficiency; SGR, specific growth rate. Variation in the data was expressed as pooled SEM. a,b Mean values in the same column with different superscripts differ significantly (p < 0.05). CUR0, CUR200, CUR400, CUR600, and CUR800: basal diets supplemented with 0, 200, 400, 600, or 800 mg curcumin/kg diet, respectively.