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* Significant at 0.05; the p-value was derived by one-way analysis of variance (ANOVA).
| Groups | N | Mean ± Std. Deviation | Std. Error | 95% Confidence Interval for Mean | F value | P value | |
| Lower Bound | Upper Bound | ||||||
| G1 (3%) | 12 | 180.48±1.024 | 0.295 | 179.83 | 181.13 | 2473.69 | 0.001* |
| GII (5%) | 12 | 191.25±0.524 | 0.151 | 190.91 | 191.58 | ||
| GIII (10%) | 12 | 197.52±0.755 | 0.218 | 197.04 | 198.00 | ||
| GIV (control) | 12 | 167.22±1.235 | 0.356 | 166.44 | 168.00 | ||
