Table 2.
The effects of dietary Boswellia serrate resin extract (BSRE) on the growth performance of O. niloticus.
| Parameters | BSRE0 | BSRE5 | BSRE10 | BSRE15 | SEM | Regression Analysis # | |
|---|---|---|---|---|---|---|---|
| Linear | Quadratic | ||||||
| IBW/fish (g) | 22.38 | 21.71 | 22.32 | 20.85 | 0.48 | 0.72 | 0.49 |
| FBW/fish (g) | 55.72 b | 60.71 a | 56.45 b | 54.96 b | 0.76 | 0.12 | 0.005 |
| TBWG/fish(g) | 33.34 b | 39.00 a | 34.13 b | 34.10 b | 0.78 | 0.54 | 0.01 |
| ADFI/ fish (g) | 0.74 b | 0.85 a | 0.80 ab | 0.75 b | 0.01 | 0.94 | 0.002 |
| Total FI/fish (g) | 41.68 b | 48.00 a | 45.28 ab | 42.47 b | 0.87 | 0.94 | 0.002 |
| FCR | 1.25 | 1.23 | 1.32 | 1.24 | 0.02 | 0.73 | 0.54 |
| PER | 2.13 | 2.16 | 2.01 | 2.14 | 0.03 | 0.69 | 0.52 |
| PPE | 0.98 b | 1.43 a | 1.28 a | 1.33 a | 0.05 | 0.001 | 0.001 |
# The regressions were considered significant at p < 0.05. IBW, Initial body weight; FBW, Final body weight; TBWG, Total bodyweight gain; FI, feed intake; FCR, Feed conversion ratio; PER, Protein efficiency ratio; PPE, Protein productive effi-ciency. Variation in the data was expressed as pooled SEM; Mean values in the same row with different superscripts differ significantly (p < 0.05). a, b Means within the same row carrying different superscripts are significantly different at (p < 0.05).