Lacy M P, Van Krey H P, Skewes P A, Denbow D M
Poult Sci. 1986 Jun;65(6):1193-6. doi: 10.3382/ps.0651193.
The neurotransmitter, serotonin, has been implicated in both food intake and body temperature regulation. In this experiment, the effect of tryptophan, the amino acid precursor of serotonin, on food consumption and rectal temperature in the fowl was determined. Single Comb White Leghorn cockerels were intubated with a tryptophan solution or distilled water. Tryptophan significantly (P less than or equal to .05) decreased both food intake and body temperature of the birds. These results suggest that tryptophan may inhibit food intake via peripheral rather than central mechanisms.
神经递质5-羟色胺与食物摄入和体温调节均有关联。在本实验中，测定了5-羟色胺的氨基酸前体色氨酸对家禽食物消耗和直肠温度的影响。给单冠白来航公鸡插管注入色氨酸溶液或蒸馏水。色氨酸显著（P≤0.05）降低了家禽的食物摄入量和体温。这些结果表明，色氨酸可能通过外周而非中枢机制抑制食物摄入。
