BifidobacteriumBifidobacteriales InfectionsProbioticsLactobacillusFecesActinomycetaceaeLactobacillus acidophilusGastrointestinal TractRNA, Ribosomal, 16SSequence Analysis, DNAYogurtDNA, BacterialSpecies SpecificityPrebioticsFermentationBarrett EsophagusIntestinesCultured Milk ProductsMolecular Sequence DataBacterial Typing TechniquesOligosaccharidesBacteroidesColony Count, MicrobialBacterial ProteinsAntibiosisInulinGenome, BacterialPhylogenySynbioticsGenes, BacterialDenaturing Gradient Gel ElectrophoresisPolymerase Chain ReactionMetagenomeEscherichia coliRNA, BacterialCecumBacteriaLactobacillus rhamnosusCulture MediaGene Expression Regulation, BacterialLactobacillus caseialpha-N-AcetylgalactosaminidaseGenes, rRNAbeta-GlucosidaseBacterial LoadAldehyde-LyasesMethanobrevibacterMilk, HumanEubacteriumAnti-Bacterial AgentsFructansInfant FormulaRaffinoseBase CompositionGerm-Free LifePlasmidsChaperonin 60MilkRetinoblastoma ProteinBacteria, AnaerobicActinobacteriaSenna ExtractPhenotypeMice, Inbred StrainsPropionibacteriumCarbohydrate MetabolismAmino Acid SequenceClostridiumMicrobial Sensitivity TestsMicrobial ViabilityDNA FingerprintingNucleic Acid HybridizationDefecationBacterial AdhesionVirulenceActinomycetales InfectionsColon