The Effect of Season and Age on Sperm Parameters in Infertile Men

Subject Areas : Journal of Animal Biology

Sh. Bakhshesh ¹ (Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran)
M. Tavalaee ² (Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran)
M.H. Nasr-Esfahani ³ (Department of Reproductive Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran; Isfahan Fertility and Infertility Center, Isfahan, Iran)

Received: 2017-12-07 Accepted : 2018-05-26 Published : 2018-05-22

Keywords: age, Season, Sperm parameters, Male infertility,

Abstract :

Approximately 15% of couples are infertile. Male factor infertility is reported in half of infertile couples. Several factors including age, and season are effective on the quality of sperm parameters, which can have different results in different geographic locations. In this study, the effect of these two factors on sperm parameters in infertile men was investigated. Overall, 659 semen samples from infertile men referred to the Isfahan Fertility and Infertility Center, Isfahan, central Iran were collected. Semen analysis included assessment of volume, concentration, motility and morphology carried out according to WHO (2010). Statistical analyses were performed using SPSS software. Quality of sperm parameters, especially sperm motility and count were affected by the age and seasonal changes. Negative significant correlations between male age with sperm count and motility were observed (P<0.05). As the age increases, the mean of sperm count and motility in infertile men are reduced, and the reduction in these two parameters are more pronounced in the first half of the year than in the second half of the year. However, age and seasonal variations do not affect sperm morphology.  

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