Table 8.
Mineral element profile (mg/kg of wet weight) of the filets of the gilthead sea bream fed with the four exerimental diets.
| GROUP | p -value | SEM1 | |||||
|---|---|---|---|---|---|---|---|
| HIM0 | HIM25% | HIM35% | HIM50% | D2 | BW3 | ||
| Fish | 18 | 18 | 18 | 18 | |||
| Macrominerals | |||||||
| P - Phosphorus | 2,356 c | 12,016 a | 9,459 b | 8,880 b | <0.0001 | 0.575 | 300.323 |
| Na-Sodium | 665 | 578 | 520 | 6340 | 0.254 | 0.652 | 53.05 |
| K-Potassium | 3286 | 3414 | 3503 | 3462 | 0.453 | 0.493 | 98.81 |
| Ca-Calcium | 943 a | 625 ab | 590 ab | 484 b | 0.019 | 0.484 | 96.01 |
| Mg-Magnesium | 358 | 344 | 367 | 356 | 0.709 | 0.526 | 13.83 |
| Ca/P ratio | 0.41 a | 0.05 b | 0.07 b | 0.05 b | <0.0001 | 0.088 | 0.03 |
| Microminerals | |||||||
| Zn-Zinc | 24.96 a | 17.92 b | 22.36 a | 16.44 b | <0.0001 | 0.466 | 2.14 |
| Fe-Iron | 5.73 a | 4.09 ab | 4.47 ab | 3.60 b | 0.011 | 0.281 | 0.41 |
| Mn-Manganese | 0.41 | 0.50 | 0.49 | 0.43 | 0.635 | 0.080 | 0.06 |
| Cu-Copper | 0.31 | 0.35 | 0.52 | 0.35 | 0.110 | 0.693 | 0.06 |
| Cr-Chromium | 0.37 | 0.41 | 0.46 | 0.48 | 0.156 | 0.124 | 0.05 |
| Se-Selenium | 0.30 a | 0.22 b | 0.22 b | 0.35 a | <0.0001 | 0.377 | 0.02 |
| Trace mineral | |||||||
| Ni-Nickel | 1.13 ab | 1.17 a | 0.75 b | 1.10 ab | 0.044 | 0.094 | 0.101 |
HIM0, fish meal group; HIM25, HIM35, and HIM50%, Hermetia illucens meal at 25, 35, and 50% substitution rates of fish meal groups, respectively.
Fish: 18 per diet, 6 fish per tank, and 3 replications per diet.
Mean values with different letters in the same row are significantly different at p < 0.05.
Standard error of the mean.
Diet.
Body weight.