khattab, ibrahim; Zeidan Mohamed Salem, Abdelfattah; Abdel Wahed, Mohamed; Kewan, Khalid
(Elsevier, 2013-05-03)
Summary: The aim of the study was to determine the influence of increasing levels of urea (i.e., 0 (U0); 10 (U10); and 15 (U15) g kg–1 of concentrate) in sheep fed diets containing dates (local name: Azzawi), on nutrient ...