02115naa a2200373 a 450000100080000000500110000800800410001902400320006010000200009224501460011226000090025852010350026765000220130265000170132465000330134165000100137465000140138465000210139865000160141965000190143565000120145465000150146665000110148165300090149265300240150165300230152565300220154865300310157065300320160165300210163370000170165470000190167177300510169015202492023-07-25       1984    bl uuuu     u00u1 u    #d7 a10.1002/mrd.11200903062DOI1 aCOURTENS, J. L.  aInduction of the acrosome reaction in the spermatozoa of the goat by secretions of the male accessory glands and milk.h[electronic resource]  c1984  aAbstract: The balancing effects of bulbourethral gland secretion (BUS) and of seminal vesicle secretion (SVS) on goat semen quality were previously demonstrated. In the present study, electron microscope observations revealed a high frequency of spermatozoa with a reacted acrosome among spermatozoa from cauda epididymis exposed to BUS in the presence of milk. This frequency was significantly reduced when SVS had been added either before or after BUS. No reacted acrosome was observed in the absence of milk. All mount spermatozoa were incubated with milk or SVS or BUS or combinations of the three materials labeled with colloidal gold. SVS attached specifically on the plasma membrane covering the anterior part of the acrosome, whereas BUS spread all over the sperm head. Milk attached on the anterior half of the sperm head only when BUS was present in the sperm environment. It is concluded that BUS plays an active role in the induction of the acrosome reaction in the presence of milk and that SVS counteracts this role.  aAcrosome reaction  aArtiodactyla  aFertilization (reproduction)  aGoats  aSecretion  aSeminal vesicles  aSpermatozoa  aUltrastructure  aCaprino  aFisiologia  aSêmen  aGoat  aMale genital system  aReacao acrossomica  aScrosome reaction  aSecrecao vesicular seminal  aSeminal vesicular secretion  aVesicular glands1 aNUNES, J. F.1 aCORTEEL, J. M.  tGamete Researchgv. 9, n. 3, p. 287-302, 1984.