Pelger, G.Armstrong, T.Winkelman, N.2013-10-022013-10-022005-09-17https://hdl.handle.net/11299/157569en-USswinepigherd healthDetermining the Efficacy of Tylan as an Intervention in a Lawsonia intracellularis Challenge Model Designed to Create Subclinical IleitisConference Paper