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Previous studies suggested that sperm head shape may serve as an effective indicator of semen quality. However, there lacks research with large sample and quantitative measurement.
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In horse breeding, quality assessment of semen before insemination is often requested. Non-laboratory-based techniques for objective analysis of sperm motility are thus of interest. The aim of this st...
The identification of biomarkers associated with seminal traits could aid in the selection of higher quality ejaculates and benefit the swine industry. The objective of this study was to identify boar...
The aim of this study was to evaluate the effect of adding different concentrations of selenium nano-particles (Se-NPs) in semen extender on bull sperm cryopreservation. Five healthy, fertile Friesian...
Accumulating evidence indicates that phthalate exposures may affect human semen quality. Epigenetic modifications such as DNA methylation might be linked chemical exposure and spermatogenesis epigenet...
Seasonal variability in cattle fertility may be attributed to male reproduction, including the quality of semen produced by males and its usefulness after cryopreservation. The exact molecular mechani...
The purpose of this study is to evaluate semen for changes following radiation treatment with proton beam radiotherapy alone. The semen samples will be compared for sperm count, sperm move...
A total 180 semen samples from couples diagnosed with unexplained infertility were SDF index tested , then total 120 semen samples of patients' husbands with abnormal SDF index were random...
The proposed research aims to study the effects of antioxidant therapy, commonly used in male infertility treatment, on semen analysis. Patients presenting with male infertility, who are f...
In order to increase the likelihood of achieving IVF-treated pregnancy, good quality embryo transfer is important. To get good quality embryos, good quality gametes are needed. The selecti...
Double-blind placebo-controlled randomized trial of daily escitalopram for 6 weeks in healthy men with normal semen analyses and no psychiatric history of depression, bipolar, mania or sui...
The quality of SEMEN, an indicator of male fertility, can be determined by semen volume, pH, sperm concentration (SPERM COUNT), total sperm number, sperm viability, sperm vigor (SPERM MOTILITY), normal sperm morphology, ACROSOME integrity, and the concentration of WHITE BLOOD CELLS.
A condition characterized by the complete absence of SEMEN. This disorder should be differentiated from AZOOSPERMIA, absence of sperm in the semen.
A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen.
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
Centers for acquiring and storing semen.