Comparison between semen parameters in specimens collected early in the morning and in the evening.

Comparison between semen parameters in specimens collected early in the morning and in the evening. Syst Biol Reprod Med. 2020 Mar 20;:1-4 Authors: Shimomura Y, Shin T, Osaka A, Inoue Y, Iwahata T, Kobori Y, Ide H, Soh S, Okada H Abstract The majority of facilities in Japan that offer artificial insemination as part of assisted reproduction programs currently perform semen collection in the early morning. The total motile sperm count of the semen used in intrauterine insemination is an important factor in achieving successful fertilization and subsequent childbirth. The present study was initiated to determine whether semen parameters varied with the time of day at which the semen sample was collected. The study subjects were 20 fertile males and 20 infertile males with abnormal seminograms who attended our Reproduction Center. Semen was collected early in the morning (morning collection group) and in the evening (evening collection group) from the same subjects, and total motile sperm count was assessed as the primary outcome measure. As secondary outcome measures, semen volume, sperm concentration, sperm motility and total sperm count were assessed. A sexual abstinence period of 3 days was set for all participants. The semen samples were analyzed using CASA CEROS, a sperm motility analysis system, and the data from the morning and evening collection groups were compared using a Wilcoxon signed rank test. We found that the fertile ...
Source: Systems Biology in Reproductive Medicine - Category: Reproduction Medicine Authors: Tags: Syst Biol Reprod Med Source Type: research