G. Gyurcsó, T. Tóth, J. Fábián, and J. Tossenberger, “The influence of L-valine supplementation of the diets on the live weight of broiler chickens (between 1−28 days of age)”, AAK, vol. 15, no. 2, pp. 71–78, Feb. 2011, Accessed: Dec. 05, 2025. [Online]. Available: https://journal.uni-mate.hu/index.php/aak/article/view/2043