ParatuberculosisMycobacterium avium subsp. paratuberculosisCattle DiseasesCattleAntibodies, BacterialEnzyme-Linked Immunosorbent AssayMycobacterium aviumMilkMycobacteriumSheep DiseasesDairyingFecesGoatsCrohn DiseaseGoat DiseasesDNA, BacterialBisonPolymerase Chain ReactionBacteriological TechniquesTuberculosis, Bovine