CastrationHorsesOrchiectomyArterivirus InfectionsHorse DiseasesTestosteroneArteritis Virus, EquineSemenAndrogensSemen PreservationSpermatozoaEquidaeSperm MotilityTestisProstateSperm HeadDihydrotestosteroneFertilityLibidoSeminal VesiclesEpididymisHerpesvirus 3, EquidWorkEndometritisLuteinizing HormoneAndrogen AntagonistsSperm CountReceptors, AndrogenSeasonsSperm CapacitationFlutamideAnxiety, CastrationSulpirideEjaculationColicSexual Behavior, AnimalTaylorella equigenitalisClonixinGonadotropin-Releasing HormoneHydrocortisoneFollicle Stimulating HormoneCyproteroneAnimal WelfareSeminal Plasma ProteinsAcrosome ReactionBreedingOrgan SizeNandrolonePeriodicityProlactinCattleSpermatogenesisTosyl CompoundsTime FactorsSemen AnalysisXylazineProtaminesButorphanolChlortetracyclineRandom AllocationInsemination, ArtificialNeoplasms, Hormone-DependentPeanut AgglutininPhysical Conditioning, AnimalEstradiolAnimal FeedHaptoglobinsHormonesCarrier StateDrug ImplantsAnesthesia, LocalSocial DominanceKetoprofenZeranolCryopreservationPituitary Gland, AnteriorAndrogen Receptor AntagonistsGonadal Steroid HormonesSheepOvariectomyHornsAnabolic AgentsPolyvinyl AlcoholPhysical ExertionAnilidesSertoli CellsCentrifugationReproductionSexual MaturationAfrican horse sickness virusSperm-Ovum InteractionsMolecular Sequence DataLeuprolideTrematodaTestosterone PropionateAnimal HusbandryScrotumLeydig Cells5-alpha Reductase InhibitorsSex Characteristics