Ramadan NA, Omar AS, Bahakaim A, Osman SM. Effect of Using Different Levels of Iron with Zinc and Copper in Layer’s Diet on Egg Iron Enrichment. Int. J. Poult. Sci. [Internet]. 2010 Aug. 15 [cited 2026 Jun. 13];9(9):842–850. Available from: https://ijpsjournal.org/ijps/article/view/1496