SpermatozoaHorsesSemen PreservationChlortetracyclineSperm MotilitySemenSperm HeadAcrosomeEpididymisArterivirus InfectionsAcrosome ReactionHorse DiseasesEjaculationSperm TransportSperm CountArteritis Virus, EquineSperm MaturationCryopreservationTestisSperm TailFertilityInfertility, MaleInsemination, ArtificialSpermatogenesisSemen AnalysisZona PellucidaFertilizationFertilization in VitroSeminal Plasma ProteinsOligospermiaSperm AgglutinationProtaminesEquidaeCryoprotective AgentsLibidoAcrosinSpermatidsHerpesvirus 3, EquidChlorohydrinsEndometritisSperm Injections, Intracytoplasmicalpha-ChlorohydrinFallopian TubesSperm CapacitationPeanut AgglutininSulpirideSeasonsCattleAsthenozoospermiaTestosteroneOocytesTaylorella equigenitalisSex PreselectionSertoli CellsPeriodicityNandroloneSexual Behavior, AnimalChromomycin A3CentrifugationPregnancyBreedingSheepPovidoneSperm RetrievalSwineMicroinjectionsVasectomyY ChromosomeFollicle Stimulating HormoneLuteinizing HormoneSpermatocytesInseminationPolyvinyl AlcoholPregnancy RateProlactinFreezingColicReproductionCervix MucusMesocricetusEmbryo TransferSeminal Vesicle Secretory ProteinsSocial DominanceCarrier StateRete TestisLeydig CellsOvumVitelline MembraneSperm MidpieceAnabolic AgentsTime Factors