Table 1.
Growth performance of rohu fingerlings fed varying levels of black seed supplemented diets for 28 days. Values are represented as mean ± S.E.M (n = 15).
| Parameters | Sampling Period (Days) |
Dietary Black Seed Levels | ||
|---|---|---|---|---|
| Group-I (0%) |
Group-II (1%) |
Group-III (2.5%) |
||
| Initial weight (g/fish) | 0-D | 8.486 ± 0.138 | 8.517 ± 0.355 | 8.506 ± 0.228 |
|
Final weight
(g/fish) |
7th-D | 8.825 ± 0.136 | 9.693 ± 0.390 | 9.784 ± 0.246 * |
| 14th-D | 9.540 ± 0.178 | 11.32 ± 0.387 *** | 11.44 ± 0.297 *** | |
| 21st-D | 10.11 ± 0.244 | 11.29 ± 0.183 ** | 12.13 ± 0.204 *** | |
| 28th-D | 11.27 ± 0.180 | 11.84 ± 0.282 ** | 12.55 ± 0.206 *** | |
| %WG | 7th-D | 4.056 ± 0.154 | 14.13 ± 1.514 **** | 15.44 ± 1.927 **** |
| 14th-D | 12.58 ± 1.511 | 22.65 ± 1.700 **** | 34.77 ± 1.618 **** | |
| 21st-D | 22.96 ± 1.628 | 34.00 ± 2.012 **** | 36.08 ± 1.626 **** | |
| 28th-D | 32.03 ± 1.648 | 37.96 ± 2.043 **** | 40.50 ± 1.660 ** | |
| SGR (%/day) | 7th-D | 0.567 ± 0.021 | 1.866 ± 0.183 *** | 2.015 ± 0.231 *** |
| 14th-D | 1.667 ± 0.201 | 4.152 ± 0.208 **** | 4.243 ± 0.170 **** | |
| 21st-D | 2.927 ± 0.197 | 2.892 ± 0.191 * | 4.382 ± 0.169 **** | |
| 28th-D | 4.055 ± 0.182 | 4.253 ± 0.209 * | 4.839 ± 0.168 * | |
| ADWG | 7th-D | 0.048 ± 0.001 | 0.168 ± 0.016 **** | 0.182 ± 0.021 **** |
| 14th-D | 0.151 ± 0.017 | 0.401 ± 0.017 **** | 0.419 ± 0.021 **** | |
| 21st-D | 0.276 ± 0.018 | 0.412 ± 0.016 | 0.435 ± 0.021 **** | |
| 28t-D | 0.397 ± 0.017 | 0.437 ± 0.016 | 0.488 ± 0.021 **** | |
| PER | 7th-D | 0.012 ± 0.001 | 0.034 ± 0.004 | 0.047 ± 0.005 **** |
| 14th-D | 0.039 ± 0.004 | 0.104 ± 0.003 | 0.109 ± 0.005 **** | |
| 21st-D | 0.072 ± 0.005 | 0.069 ± 0.004 | 0.113 ± 0.005 **** | |
| 28th-D | 0.103 ± 0.005 | 0.107 ± 0.004 | 0.127 ± 0.005 ** | |
| CF (g/cm3) | 7th-D | 1.151 ± 0.059 | 1.176 ± 0.087 | 1.004 ± 0.049 |
| 14th-D | 1.411 ± 0.087 | 1.568 ± 0.150 | 1.283 ± 0.097 | |
| 21st-D | 1.507 ± 0.092 | 1.426 ± 0.110 | 1.327 ± 0.107 | |
| 28th-D | 1.538 ± 0.071 | 1.585 ± 0.137 | 1.360 ± 0.107 | |
| HSI (%) | 7th-D | 1.529 ± 0.076 | 1.536 ± 0.089 | 1.543 ± 0.075 |
| 14th-D | 1.534 ± 0.069 | 1.537 ± 0.112 | 1.545 ± 0.067 | |
| 21st-D | 1.549 ± 0.081 | 1.557 ± 0.064 | 1.562 ± 0.0452 | |
| 28th-D | 1.558 ± 0.054 | 1.568 ± 0.086 | 1.575 ± 0.060 | |
| Survival rate (%) | 7th–28th-D | 100 | 100 | 100 |
Values with the * in the same row are statistically different (* p < 0.05, ** p < 0.01, *** p < 0.001 and **** p < 0.0001). where, Percentage Weight Gain, %WG = 100 × (final body weight—initial body weight)/Initial body weight; Specific Growth Rate, SGR = 100 × ln (final body weight/Initial body weight)/days of the experiment; Average Daily Weight Gain, ADWG = (final body weight—initial body weight)/days of the experiment; Protein Efficiency Ratio, PER = weight gain/protein intake; Condition Factor, CF = 100 × body weight (g)/body length (cm3); Hepatosomatic Index, HSI = 100 × liver weight/body weight and Percentage Survival Rate, % SR = 100 × final number of fish/initial number of fish.