Pithua, PatrickWells, ScottGodden, Sandra2010-02-042010-02-042010-02-04https://hdl.handle.net/11299/57209en-USCattleDairyHerd healthRisk of detecting Mycobacterium avium subsp. paratuberculosis DNA in colostrum and on teat skin of Holstein cows in Johne’s disease infected herdsConference Paper