Beer, M. de, and C.N. Coon. “The Effect of Different Feed Restriction Programs and Dietary L-Carnitine Supplementation on Hepatic Lipogenesis, Plasma Heterophil to Lymphocyte Ratio and Yolk IgY Content of Broiler Breeder Hens”. International Journal of Poultry Science 8, no. 4 (March 15, 2009): 328–341. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1171.