Uthayathas, S.Perera, A.N.F.Perera, E.R.2014-11-122014-11-121999Tropical Agricultural Research, 11:p.211-220https://dl.nsf.gov.lk/handle/1/12364Veterinary ScienceAnimal feedProtein supplementAnimal nutritionEffects of supplementation with undegradable dietary protein in urea molasses bolus in rice straw based rations on digestibility and nitrogen metabolism in sheepA