| ANOVA | Analysis of variance |
| AOAC | Association of Analytical Communities |
| β-Act | β-Actin |
| cDNA | Complementary deoxyribonucleic acid |
| CECT | Colección Española de Cultivos Tipo |
| COX-2 | cyclooxygenase 2 |
| FM | fish meal-based diet |
| DMEM | Dulbecco’s Modified Eagle’s Medium |
| EF-1α | Elongation Factor 1α |
| FG | Foregut |
| GAPDH | glyceraldehyde-3-phosphate dehydrogenase |
| HG | hindgut |
| IgM | immunoglobulin M |
| IL-1β | interleukin 1β |
| IL-6 | interleukin 6 |
| LDH | lactate dehydrogenase |
| NADH | nicotinamide adenine dinucleotide |
| Ocl | occludin |
| PP | plant protein-based diet |
| PP* | plant protein-based diet (short term) |
| qPCR | quantitative polymerase chain reaction |
| RNA | ribonucleic acid; Rps18: ribosomal protein S18 |