SemenSemen AnalysisSperm MotilitySemen PreservationGastrointestinal MotilitySperm CountSpermatozoaInfertility, MaleEjaculationInsemination, ArtificialCell MovementFertilityCryopreservationFlagellaOligospermiaEsophageal Motility DisordersSperm BanksAsthenozoospermiaMovementAcrosomeAndrologyVasectomySeminal Vesicle Secretory ProteinsVaricoceleSperm TailCryoprotective AgentsInsemination, Artificial, HeterologousTestisSperm CapacitationMasturbationAcrosome ReactionEpididymisCervix MucusSperm-Ovum InteractionsManometrySpermatogenesisSexual AbstinenceSperm HeadGenitalia, MaleFertilizationGastric EmptyingFreezingLocomotionFertilization in VitroPseudopodiaInsemination, Artificial, HomologousPregnancyAntelopesLibidoSperm TransportPeristalsisCell AdhesionMyxococcus xanthusSperm RetrievalScrotumGenital Diseases, MaleCattleSeminal VesiclesPregnancy RateManuals as TopicTestosteroneTime FactorsEgg YolkBacterial ProteinsCytoskeletonMyoelectric Complex, MigratingReceptors, Autocrine Motility FactorMicroscopy, VideoMolecular Motor ProteinsAzoospermiaGastrointestinal TransitSwineVirus SheddingSeminal Plasma ProteinsSignal TransductionMolecular Sequence Data