D. GUDEV, P. MONEVA, S. POPOVA-RALCHEVA, and V. SREDKOVA, “TONIC IMMOBILITY AND ADRENAL RESPONSE IN CHICKENS FED SUPPLEMENTAL TRYPTOPHAN”, BJAS, vol. 17, no. 4, pp. 560–566, Aug. 2011, Accessed: Nov. 09, 2026. [Online]. Available: https://agriacad.eu/ojs/index.php/bjas/article/view/6018