This study was undertaken to find out what, if any, within-subject variability exists in semen parameters, and calcium and magnesium levels in seminal plasma and spermatozoa. Significant changes (p<0.05) were found in semen volume and in the percentage of sluggish motile spermatozoa. No other significant changes were seen in semen parameters or in calcium or magnesium in spermatozoa and seminal plasma.
VasudevanD.M., SreekumariS.. Textbook of biochemistry.New Delhi (India): Jaypee Brothers Medical Publication2005.
2.
SkandhanK.P., PandyaC.B., SkandhanS., ShahR.C.. Daily ejaculates: level of zinc and copper in seminal plasma – necessity for abstinence prior to semen collection Infertility.Acta Eur Fertil1985; 8: 279–86.
3.
MannT., MannC.L.. Male reproductive function and semen.Berlin (Germany): Springer-Verlag1981.
4.
EliassonR., LindholmerC.. Distribution and properties of spermatozoa in different fractions of split ejaculates.Fertil Steril1972; 23: 252–6.
5.
SkandhanK.P.. Importance of zinc in the semen quality of different fractions of split ejaculate.Infertility1981; 4: 67–81.
6.
World Health Organization.Laboratory manual for the examination of human semen and sperm cervical mucus interaction.Cambridge (UK): WHO Publication1992.
EliassonR.. Analysis of semen. In: BehramS.J., KinsterR.W. Eds. Progress in infertility.Boston (USA): Little Brown1975.
9.
HeychelV., SchwartzD., PrinceW.. Within subject variability and the importance of volume and pre-freeze and post-thaw motility.Andrologia1981; 13: 479–85.
10.
SchwartzD.A., LaplancheA., JouannetP., DavidG.. Within subject variability of human semen in regard to sperm count, volume and total number of spermatozoa and length of abstinence.J Reprod Fertil1979; 57: 391–5.
11.
MortimerD., TempletonA.A., LetonE.A., ColemanR.A.. Influence of abstinence and ejaculaton-to-analysis delay on semen analysis parameters of suspected infertile men.Arch Androl1982; 8: 251–6.
12.
MallidisC., HowardE.J., BakerH.W.. Variation of semen quality in normal men.Int J Androl1991; 14: 99–107.
13.
SkandhanK.P., MazumdarB.N.. Interdependence of count and motility of spermatozoa.Acta Eur Fertil1983; 13: 49–54.
14.
AmmanR.P., HowardsS.S.. Daily spermatozoal production and epididymal spermatozoa reserves of the human male.J Urol1983; 124: 211–8.
15.
SkandhanK.P., Rajahariprasad. The process of spermatogenesis liberates significant heat and scrotum has a role in body thermoregulation.Med Hypotheses2006; 68: 303–7.
16.
SkandhanK.P.. Can increase in frequency of ejaculation promote spermatogenesis?Med Hypotheses1989; 30: 81–3.
17.
KawakamiE., HoriT., TsutsiuT.. Changes in semen quality and in vitro sperm capacitation during various frequencies of semen collection in dogs with both asthenozoospermia and teratozoospermia.J Vet Med Sci1998; 60: 607–14.
18.
SkandhanK.P., ShilpaV.S., DodiaA., AmithS., VesumaP.R.. Semen of patients with impotency.Sexologies: European J Sex Health (In press) 2007.
