Assessment of bacterial phytase and citric acid concentrations on economic traits, nutrients' digestibility and protein metabolites of broiler chickens fed diets containing marginal level of nutrients. - Attia, Youssef A.; Addeo, N. F.; Bovera, Fulvia; Qota, El-Shohat M.; Alhotan, Rashed A.; Albanoby, Mohamed; Mahmoud, Mervat A. (Italian Journal of Animal Science, 2025)