“…Supplementation of enzyme complex and yeast has been shown to improve the efficiency of utilization of poor quality or highly fibrous feed stuffs in poultry production (Al-Mansour, Al-Khalf, Al-Homidan, & Fathi, 2011;Zamani, Loh, Foo, Samsudin, & Alshelmani, 2017;Ludke et al, 2018, Woyengo, Bogota, Noll, & Wilson, 2018. Supplementation of multi-enzymes is believed to promote the dissolution of starch, cell walls and endogenous proteins, thus enhancing energy use; and thus reducing the detrimental impact of non-starch polysaccharides (NSPs) in poultry (Adeola & Cowieson, 2011;Suresh et al, 2019;Attia, Al-Khalaifah, Abd El-Hamid, Al-Harthi, & El-Shafey, 2020).…”