Gastrointestinal TractDigestive SystemDigestive System Physiological PhenomenaUpper Gastrointestinal TractGastrointestinal NeoplasmsGastrointestinal DiseasesLower Gastrointestinal TractStomachIntestinal MucosaUrinary Tract InfectionsIntestinesIntestine, SmallColonUrinary TractCecumIntestine, LargeDuodenumFecesEnteric Nervous SystemGerm-Free LifeGastrointestinal MotilityGastric MucosaIntestinal AbsorptionGastrointestinal ContentsIleumRespiratory Tract InfectionsBlood Glucose Self-MonitoringJejunumLactobacillusPyramidal TractsGastrointestinal HemorrhageEndoscopy, GastrointestinalProbioticsFlowmetersGastrointestinal TransitAdministration, OralEsophagusPeak Expiratory Flow RateGastrointestinal Stromal TumorsDigestionTime FactorsLactobacillus reuteriSwineEnteroendocrine CellsInflammatory Bowel DiseasesMetagenomeImmunohistochemistryBifidobacteriumBacteriaStomach DiseasesGastrointestinal HormonesAnimal FeedColony Count, MicrobialForeign BodiesEnteritisGastric EmptyingDigestive System DiseasesIntestinal DiseasesTissue DistributionAltitudeIntubation, GastrointestinalDigestive System Surgical ProceduresStomach NeoplasmsMolecular Sequence DataDigestive System NeoplasmsEndoscopes, GastrointestinalRectumIntestinal NeoplasmsCrop, AvianDuodenal NeoplasmsDigestive System AbnormalitiesIntestinal PerforationBiliary TractRespiratory SystemReagent StripsFatty Acids, VolatileEsophageal DiseasesEndoscopyIntestinal PolypsUrogenital SystemExtraterrestrial EnvironmentCarcinoid TumorImmunity, MucosalGenitalia, FemaleReproducibility of ResultsMucinsBlood GlucoseBiological AvailabilityCrohn DiseaseCaco-2 CellsMyenteric PlexusLactobacillus plantarumIntestinal ObstructionHydrogen-Ion ConcentrationPrebioticsAnti-Bacterial AgentsEquipment DesignBiliary Tract DiseasesColonic DiseasesDiet