In poultry, GALT encompasses esophageal tonsils, pyloric tonsils, Meckel's diverticulum, Peyer's patches, and two cecal tonsils. Cecal tonsils ...ThisarticleispartoftheResearchTopicProceedingsofImmunocolombia2015Viewall23ArticlesArticlesKuldeepDhamaIndianVeterinaryResearchInstitute(IVRI),IndiaHariM.SaxenaGuruAngadDevVeterinaryandAnimalSciencesUniversity,IndiaMithileshSinghImmunologySection,IndianVeterinaryResearchInstitute(IVRI),IndiaTheeditorandreviewers'affiliationsarethelatestprovidedontheirLoopresearchprofilesandmaynotreflecttheirsituationatthetimeofreview.AbstractIntroductionMaterialsandMethodsResultsDiscussionConclusionEthicsStatementAuthorContributionsConflictofInterestStatementAcknowledgmentsFundingAbbreviationsReferencesSuggestaResearchTopic>DownloadArticleDownloadPDFReadCubeEPUBXML(NLM)SupplementaryMaterialExportcitationEndNoteReferenceManagerSimpleTEXTfileBibTextotalviewsViewArticleImpactSuggestaResearchTopic>SHAREONOriginalResearchARTICLEFront.Immunol.,22May2017|https://doi.org/10.3389/fimmu.2017.00568Gut-AssociatedLymphoidTissue:AKeyTissueInsidetheMucosalImmuneSystemofHensImmunizedwithEscherichiacoliF4MariaF.Peralta1*,AlejandraMagnoli1,FabrisioAlustiza2,ArmandoNilson1,RaúlMiazzo1andAdrianaVivas21ProduccionAnimal,FacultaddeAgronomíayVeterinaria,UniversidadNacionaldeRioCuarto,Córdoba,Argentina2AnatomiaAnimal,FacultaddeAgronomíayVeterinaria,UniversidadNacionaldeRioCuarto,Córdoba,ArgentinaImmunoglobulinY(IgY)isthepredominantantibodyfoundinhen’s(Gallusdomesticus)eggyolk.Thisantibody,developedagainstseveralmicroorganismsinheneggyolk,hasbeensuccessfullyusedasanalternativetoimmunoglobulinsfrommammalsforuseinimmunodiagnosticsandimmunotherapy.EnteropathogenicEscherichiacoli(E.coli)F4isthemainetiologicalagentassociatedwithswineneonataldiarrhea,anditcausesnotableeconomiclossesinswineproduction.Theaimofthepresentstudywastoevaluatetherelationshipbetweenhumoralimmuneresponseandtheactivationofgut-associatedlymphoidtissue(GALT)inlayinghensintramuscularlyimmunizedwithE.c