Al- Khalifa , Hanan, Afaf Al-Nasser, Gehan Ragheb, Mariam Al-Bahouh, and Faten Khalil. “Immunomodulation of Black Seed in Two Strains of Laying Hens”. International Journal of Poultry Science 12, no. 8 (July 15, 2013): 451–455. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/1965.