SeleniumSelenium CompoundsSulfurOrganoselenium CompoundsIsotopesIsotope LabelingSelenium RadioisotopesSulfur CompoundsCadmium CompoundsSelenocysteineSulfur IsotopesSodium SeleniteSulfidesSelenious AcidNitrogen IsotopesMercury CompoundsOxygen IsotopesSelenoproteinsCarbon IsotopesSulfur DioxideSelenomethionineAmino Acids, SulfurTelluriumQuantum DotsGlutathione PeroxidaseSelenic AcidSelenoprotein PWeight PerceptionSemiconductorsSilverLyasesG2 Phase Cell Cycle CheckpointsMethanolDNA Breaks, Single-StrandedPhosphotransferasesOxidation-ReductionMustard GasZinc IsotopesRadioisotopesVitamin E DeficiencyBody WeightThiosulfatesSkin PigmentationDeuteriumSulfur OxidesHomologous RecombinationWeaningLiverIron IsotopesMetalsSelenium OxidesDietSulfatesMeatNailsBirth WeightAnimal FeedTrace ElementsAnimal HusbandryStrontium IsotopesBreedingChlorobiCysteineAnimal Nutritional Physiological PhenomenaOxidoreductases Acting on Sulfur Group DonorsPregnancyCattleMass SpectrometryBody CompositionReproductionSulfur HexafluorideDietary SupplementsRadioisotope Dilution TechniqueLeast-Squares AnalysisVitamin ELitter SizeSulfurtransferasesChromatiaceaeChemical Warfare AgentsPigmentationWeight GainEye ColorMethionineThioredoxin-Disulfide ReductaseSelenium-Binding ProteinsSulfur AcidsSheepKineticsRandom AllocationSwineHair ColorIndicator Dilution TechniquesHydrogen SulfideLactationChlorobiumGeologic SedimentsCentrifugation, Density GradientMolecular Sequence DataGas Chromatography-Mass SpectrometryTime Factors