FertilizationSperm-Ovum InteractionsZona PellucidaOvumSpermatozoaFertilization in VitroZygoteEgg ProteinsOocytesSperm AgglutinationAcrosome ReactionOogenesisAcrosomePronaseUrochordataParthenogenesisOviductsSwineSperm MotilitySea UrchinsEmbryo Culture TechniquesCytoplasmic GranulesBlastocystFallopian TubesExocytosisEmbryonic and Fetal DevelopmentReceptors, Cell SurfaceGlycoproteinsCalciumCulture MediaCell MembraneCattleSpecies SpecificityTime Factors