Sperm motility stimulation is a pharmacological treatment used to improve sperm motility and treatment outcome in frozen-thawed epididymal and testicular spermatozoa. Sperm motility is a critical factor in male fertility. Low motility can be caused by a variety factors including abnormal spermatogenesis, oxidative damage, or depletion of intracellular adenosine triphosphate (ATP; molecule that ...

objective: to determine bilateral effects of unilateral iatrogenic vas deferens trauma (uit) on epididymal sperm characteristics and in vitro fertilizing capacity in an experimental mouse model. methods: experiments were performed on three equal groups each comprising six adult male mice. following anaesthesia, uit was induced by clamping left vas deferens with a mosquito clamp in fully locked ...

During biogas production, anaerobic digestion of plant material rich in nutrients results the so-called whole digestate. The application nutrient-rich present digestate could have fertilising effects, especially intensively used agricultural soils, andin crop yields that can affect nutrient cycle. aim this article is to inform about possibilities using mixture andhaylage (use fertilizing effect...

Fertilization currents are similar in ascidian oocytes and fragments, irrespective of the size and global origin of the fragments; this result suggests that fertilization channels are distributed uniformly over the oocyte surface. Because no correlation exists between peak current and surface area of the cell, it is probable that the fertilizing spermatozoon does not open all available precurso...

Human spermatozoa are initially incapable of penetrating zona pellucida-free animal (hamster) ova but gain the ability to do so when incubated several hours in vitro. Experimental evidence suggests that this ability is associated with the completion of sperm capacitation and the acrosome reaction. Thus it appears that zona-free animal ova can be substituted for human ova in the preliminary asse...

Sperm motility stimulation is a pharmacological treatment used to improve sperm motility and treatment outcome in frozen-thawed epididymal and testicular spermatozoa. Sperm motility is a critical factor in male fertility. Low motility can be caused by a variety factors including abnormal spermatogenesis, oxidative damage, or depletion of intracellular adenosine triphosphate (ATP; molecule that ...