AbsorptionIntestinal AbsorptionDigestionSkin AbsorptionBiological AvailabilitySpectrophotometry, AtomicJejunumX-Ray Absorption SpectroscopyTrypsinIntestine, SmallSpectrophotometryRumenCattleSpectrum AnalysisDuodenumIronKineticsHydrogen-Ion ConcentrationAnimal FeedMolecular Sequence DataIntestinesPhytic AcidMolecular WeightZincStarchChromatography, High Pressure LiquidAdministration, OralFecesZinc RadioisotopesIleumAmino Acid SequenceSpectrophotometry, UltravioletAmino AcidsIron RadioisotopesElectrophoresis, Polyacrylamide GelZinc IsotopesDietCaco-2 CellsPeptide FragmentsDietary FiberMalabsorption SyndromesChymotrypsinIntestinal MucosaMicrococcal NucleaseNitrogenFatty Acids, VolatileSitosterolsWaterBiological TransportLymphPepsin ADigestive System Physiological PhenomenaFermentationHydrolysisDietary ProteinsRabbitsBase SequenceSolubilityEnterocytesGastrointestinal TransitTime FactorsZea maysIron, DietaryCalcium, DietaryBinding SitesSodiumMass SpectrometryLiverCopperFerrous CompoundsSwineFood, FortifiedSpectrophotometry, InfraredSoybeansBile Acids and SaltsChromatography, GelPoaceaeEatingPancreatinCholesterolPhytosterolsCalciumDigestive SystemOligosaccharidesAzetidinesPronaseProtein ConformationBicarbonatesCerealsSpectrometry, FluorescenceCross-Over StudiesDietary CarbohydratesCircular DichroismDNAPapainRuminantsTemperatureChemistryOxidation-ReductionSheep