Feeding 5 per cent L-phenylalanine to chicks of pullets fed same levels of L-phenylalanine.
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D001921:Brain / Q000378:metabolism*; D002645:Chickens / Q000254:growth & development*; D003864:Depression, Chemical; D005260:Female; D008297:Male; D009638:Norepinephrine / Q000378:metabolism*; D010649:Phenylalanine / Q000097:blood / Q000494:pharmacology*; D012701:Serotonin / Q000378:metabolism*
D012701:Serotonin; D010649:Phenylalanine; D009638:Norepinephrine