Table 6.
Fatty acid classes and nutritional indices 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 | |||
| SFA | 22.08 b | 22.33 ab | 22.28 ab | 22.88 a | 0.042 | 0.619 | 0.469 |
| MUFA | 51.14 a | 51.51 a | 50.93 a | 50.00 b | <0.0001 | 0.792 | 0.360 |
| PUFA | 26.72 a | 26.10 b | 26.72 a | 27.05 a | <0.0001 | 0.318 | 0.224 |
| n3 | 13.15 a | 12.57 b | 12.75 ab | 12.74 ab | 0.003 | 0.512 | 0.134 |
| n6 | 13.57 c | 13.52 c | 13.97 b | 14.31 a | <0.0001 | 0.380 | 0.071 |
| n3/n6 | 0.97 a | 0.93 b | 0.91 bc | 0.89 c | <0.0001 | 0.995 | 0.001 |
| EPA+DHA | 8.21 a | 7.68 b | 7.79 b | 7.73 b | 0.001 | 0.747 | 0.100 |
| AI | 0.33 b | 0.33 b | 0.34 b | 0.35 a | 0.001 | 0.941 | <0.0001 |
| TI | 0.29 | 0.30 | 0.30 | 0.30 | 0.182 | 0.501 | <0.0001 |
| H/H ratio | 3.72 | 3.70 | 3.75 | 3.64 | 0.379 | 0.964 | 0.023 |
| PI | 64.62 a | 61.95 b | 63.17 ab | 63.30 ab | 0.004 | 0.651 | 2.910 |
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.
SFA, sum of the saturated fatty acids; MUFA, sum of the monounsaturated fatty acids; PUFA, sum of the polyunsaturated fatty acids; EPA, eicosapentaenoic acid; DHA, docosahexaenoic acid; AI, atherogenic Index; TI, thrombogenic Index; PI, peroxidation index; H/H, hypocholesterolaemic/hypercholesterolaemic ratio. Mean values with different letters in the same row are significantly different at p < 0.05.
Standard error of the mean.
Diet.
Body weight.