Amino Acids, SulfurSulfurMethionineGlutathioneCystineTaurineSulfur CompoundsCysteine DioxygenaseCysteineAmino AcidsSulfatesNutritional RequirementsSulfur IsotopesGlutathione TransferaseDietary ProteinsHomocysteineGlutathione DisulfideHomocystineGlutamate-Cysteine LigaseCystathionine gamma-LyaseCysteine SynthaseVitamin UVegetable ProteinsCystathionineCystathionine beta-SynthaseDietGlutathione PeroxidaseNitrogenSequence Homology, Amino AcidBetaine-Homocysteine S-MethyltransferaseGlutathione ReductaseCarbon-Oxygen LyasesDiet, Protein-RestrictedPyridoxineDioxygenasesSulfidesOxidation-ReductionLiverAmino Acid SequenceCarbon IsotopesWeight GainSulfur DioxideAnimal FeedAmino Acid SubstitutionOxygenasesCloning, MolecularSwineRats, Inbred StrainsBody WeightGlutathione SynthaseRandom AllocationBiological Availability