MacRae, J C The use of inert ruthenium-phenanthroline as a digesta particulate marker in sheep. [electronic resource] - The Proceedings of the Nutrition Society May 1974 - 10A-11A p. digital Publication Type: Journal Article ISSN: 0029-6651 Subjects--Topical Terms: AnimalsDigestionFeces--analysisPhenanthrolinesRadioisotopesRumen--analysisRutheniumSheep--metabolismSpectrometry, Fluorescence