Soliman MA, Gendy HE, Hanbally SE. Effects of calf thymus extract and L-carnitine on immunity and growth performance of broiler chickens. Int J Sci Rep [Internet]. 2020 Jan. 24 [cited 2025 Nov. 13];6(2):45-52. Available from: https://www.sci-rep.com/index.php/scirep/article/view/652