Okitsu, O Activation of bovine oocytes matured in vitro by injection of bovine and human spermatozoa or their cytosolic fractions. [electronic resource] - Zygote (Cambridge, England) Feb 2001 - 89-95 p. digital Publication Type: Journal Article ISSN: 0967-1994 Standard No.: 10.1017/s0967199401001095 doi Subjects--Topical Terms: AnimalsCattleCell Extracts--pharmacologyCells, CulturedCytosol--chemistryFemaleHumansMaleMicroinjectionsOocytes--drug effectsSpecies SpecificitySperm Injections, IntracytoplasmicSperm-Ovum InteractionsSpermatozoa--physiology