| SFEY | Silky fowl egg yolk |
| LEY | Leghorn egg yolk |
| HTR | 5-hydroxytryptamine receptor 2 |
| TAR | Trace amine-associated receptor |
| AGT | Angiotensinogen II, III |
| AGTR | Angiotensin II receptor type 1 |
| NPFF | Neuropeptide FF-amide peptide |
| NPFFR | Neuropeptide FF receptor 1 |
| NPY | Neuropeptide Y |
| NPYR | Neuropeptide Y receptor |
| AVP | Arginine vasopressin |
| AVPR | Arginine vasopressin receptor 2 |
| PAL | Proteinase-activated like |
| PAR | Proteinase-activated receptor |
| PRLH | Prolactin-releasing-like hormone |
| PRLHR | Prolactin-releasing hormone receptor. |