Ghafoor A, Naseem S, Younus M, Nazir J. Immunomodulatory Effects of Multistrain Probiotics (Protexin™) on Broiler Chicken Vaccinated Against Avian Influenza Virus (H9). Int. J. Poult. Sci. [Internet]. 2005 Sep. 15 [cited 2025 Sep. 22];4(10):777–780. Available from: https://ijpsjournal.org/index.php/ijps/article/view/430