The Split Ejaculate

  • J. Cohen
  • A. Fari
  • W. J. Finegold
  • S. Propping
  • M. L. Taymor
Part of the Clinics in Andrology book series (CLAN, volume 1)

Abstract

Many couples are frustrated by infertility caused by deficiency in semen characteristics, e.g. oligozoospermia. This pathology has not been consistently corrected by medical therapy, but AIH using the split-ejaculate method has been offered as a reasonable alternative because of its simplicity and potential benefit. The distribution of spermatozoa in the semen of animals and man is not uniform throughout the entire ejaculatory process. A historical review of this phenomenon is shown in Table 1. By fractionating the seminal specimen during the ejaculatory process, one may use the more concentrated, better-quality portion in performing insemination in infertile patients. In man, the first part of the split ejaculate usually contains 76% of the total number of spermatozoa (MacLeod and Hotchkiss 1942). The ejaculatory process involves three events which occur in a characteristic sequence (Amelar and Hotchkiss 1965). A scant secretion from the Cowper’s glands initiates the ejaculation, is followed by the secretion from the prostate gland, the products from the testes, epididymes and the vasa deferentia. This is followed by secretion of the seminal vesicles. It is the first portion therefore of the ejaculate which normally contains the highest concentration of spermatozoa. This differential characteristic forms the basis for the use of the split ejaculate in AIH (Table 2). This phenomenon is true in about 80% of the cases. In 10%, the second portion contains the better quality and in the remaining 10% there is no difference.

Keywords

Fructose Infertility Amphetamine Oligospermia 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Amelar RD, Hotchkiss RS: The split ejaculate: its use in the management of male infertility. Fertil Steril 16: 46, 1965.PubMedGoogle Scholar
  2. Barwin BN: Intrauterine insemination of husband’s semen. J Reprod Fertil 36: 101, 1974.PubMedCrossRefGoogle Scholar
  3. Cohen J et al: Spermiologic and clinical study of artificial insemination with split ejaculate. Fertil Steril 28: 310, 1977.Google Scholar
  4. Cohen MR, Pandya G: Artificial insemination. Fertil Steril 5: 430, 1954.Google Scholar
  5. Delafontaine D, Cohen J, Grenier J: Etude spermiologique, biologique et chimique de l’éjaculat fractionné. Presented at the first congress of andrology, Barcelona, 1976.Google Scholar
  6. Dixon RE: Artificial insemination using homologous semen. Fertil Steril 27: 647, 1976.PubMedGoogle Scholar
  7. Fari A, Verges J, Trevoux R, Belaisch J: Examens biochimiques et bactériologiques du plasma seminal humain I: méthodologie, applications, interprétation. Rev Franç Gynéc 71: 663. 1976.Google Scholar
  8. Finegold WJ: Artificial insemination,Springfield, Thomas, 1976 (2nd ed).Google Scholar
  9. Guttmacher AF: Artificial insemination. Ann NY Acad Sci 97: 623, 1962.CrossRefGoogle Scholar
  10. Hard AD: Artificial impregnation. Med World 27: 163, 1909.Google Scholar
  11. Harvey C, Jackson MH: A method of concentrating spermatozoa in human semen. J Clin Path 8: 341, 1955.PubMedCrossRefGoogle Scholar
  12. Hill AM: Experience with artificial insemination. Aust NZJ Obstet Gynaec 10: 112, 1970.CrossRefGoogle Scholar
  13. Home E: An account of the dissection of an hermaphrodite dog. Phil Trans London 89:157, 1799. Langer G et al: Artificial insemination. Int J Fertil 14: 232, 1969.Google Scholar
  14. Lutwak-Mann C, Rowson LEA: The chemical composition of the pre-sperm fraction of bull ejaculate obtained by electrical stimulation. J Agric Sci 43: 131, 1953.CrossRefGoogle Scholar
  15. MacLeod J, Hotchkiss RS: Distribution of spermatozoa and certain of chemical constituents in human ejaculate. J Ural 48: 225, 1942.Google Scholar
  16. Nakamura MS et al: Seven years experience with artificial insemination. Fertil Steril 28: 310, 1977.Google Scholar
  17. Propping D. Tauber PF, Katzorke T: The use of the split ejaculate for homologous artificial insemination. Presented at the first international symposium on AIH and male subfertility, Bordeaux. 1978.Google Scholar
  18. Sillo-Seidl G: The first child after artificial insemination with fractionated semen. S. African Med J 46: 1517, 1972.Google Scholar
  19. Speichinger J, Mattox JH: Homologous artificial insemination and oligospermia. Fertil Steril 27: 135, 1976.PubMedGoogle Scholar
  20. Steiman RP, Taymor ML: Artificial insemination homologous and its role in the management of infertility. Fertil Steril 28: 146, 1977.PubMedGoogle Scholar
  21. Taymor ML: The role of AIH in male subfertility. Presented at the first international symposium on AIH and male subfertility, Bordeaux, 1978.Google Scholar
  22. Tyler ET: Sterility, New York, McGraw-Hill, 1961, p 340.Google Scholar
  23. Ulstein M: Fertility of husbands at homologous artificial insemination. Acta Obstet Gynecol Scand 52: 5, 1973.PubMedCrossRefGoogle Scholar
  24. White RM, Glass RH: Intrauterine insemination with husband’s semen Obstet Gyneco l47:119, 1976.Google Scholar

Copyright information

© Martinus Nijhoff Publishers bv, The Hague 1980

Authors and Affiliations

  • J. Cohen
  • A. Fari
  • W. J. Finegold
  • S. Propping
  • M. L. Taymor

There are no affiliations available

Personalised recommendations