Abubakar, M.; Adegbola, T. A.; Abubakar, M. M.; Shehu, Y.; Ngele, M. B.; Kalla, D. J. U. NUTRITIONAL EVALUATION OF DIFFERENT SOURCES OF NITROGEN ON DIGESTIBLE NUTRIENT INTAKE, NITROGEN BALANCE AND PRODUCTION OF RUMEN METABOLITES IN GROWING YANKASA SHEEP. Emir J Food Agric 2017, 22, 298-307.