Jayasuriya, M.C.N.2010-07-062010-07-061980Journal of the National science Council of sri Lanka, 8(1):p.61-67https://dl.nsf.gov.lk/handle/1/6136Agricultural by-productsDigestible energyDietary constituentsChemical TechnologyUrea as a source of non-protein nitrogen for ruminants II:effect of urea as a non-protein source on digestibility and voluntary intake by sheep fed alkali treated rice straw.Article