AndrosteroneBulbourethral GlandsAgonistic BehaviorSwineAndrostenols3-Hydroxysteroid DehydrogenasesTestisSus scrofaSmellOdorsOlfaction Disorders17-Hydroxysteroid DehydrogenasesBreedingMeatAdipose TissueSulfotransferasesApigeninReceptors, OdorantQuantitative Trait LociEstroneAggressionOrchiectomySteroidsTestosteroneSexual MaturationGenome-Wide Association StudySensory ThresholdsLiverPolymorphism, Single NucleotideAndrogensGene Expression Regulation, EnzymologicSequence Analysis, RNASpecies SpecificityGenetic Association StudiesCytochrome P-450 Enzyme SystemGenotypeOligonucleotide Array Sequence AnalysisChromatography, High Pressure LiquidGene Expression ProfilingPhenotypePolymerase Chain Reaction