Cao T, Weil J, Maharjan P, Lu J, Coon C. The Digestible Methionine and Cystine Requirements for Commercial Layers. Int. J. Poult. Sci. [Internet]. 2020 Apr. 15 [cited 2025 Sep. 22];19(5):232–243. Available from: https://ijpsjournal.org/index.php/ijps/article/view/2596