نتایج جستجو برای: spermatozoa motility

تعداد نتایج: 49150  

Journal: :South African Journal of Animal Science 2021

Computer-assisted semen analysis (CASA) is an automated and objective method of evaluating structural (e.g. morphology) functional sperm parameters motility hyperactivation). Sperm hyperactivation essential for successful fertilization thus important aspect in determining the fertility potential a male. In current study, CASA was used standard comparison ability phosphate buffered saline (PBS),...

Journal: :Journal of reproduction and fertility 1970
H Timourian G Watchmaker

Spermatozoa depend on their motility to accomplish their function of fertili¬ zation. In the case of sea-urchins and other marine organisms, the ionic com¬ position of sea-water is among the environmental factors that affect motility and longevity (Bishop, 1962). We have started studies of specific ion concen¬ tration changes in the sea-water as they affect the motility of sea-urchin spermatozo...

Journal: :medical journal of islamic republic of iran 0
heidar tavilani department of medical biochemistry, hamadan university of medical sciences, hamadan, mahmoud doosti department of medical biochemistry, faculty of medicine, tehran university of medical sciences hojatollah saeidi , the department of medical pathology, tehran university of medical sciences, tehran,سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) seyed mohammad hosseinipanah he department of anatomy, kashan university of medical sciences, kashan, i.r. iran. hasan hasani baferani he department of anatomy, kashan university of medical sciences, kashan, i.r. iran.

background: the lipid peroxides and their degradation products are highly toxic to spermatozoa and may play a major role in sperm dysfunction. the purpose of this study was to determine the level of lipid peroxidation as indicated by malondialdehyde (mda) in the spermatozoa and seminal plasma of asthenozoospermic and normozoospermic males. in addition, correlation of lipid peroxidation with mot...

Abdy K Fajr A Madadi M, Mirzaei H Rezaei Topraggaleh T,

Background: Epididymal spermatozoa have been used for production of offspring from genetically important animals after they are dead. To attain optimal fertility with epididymal spermatozoa, they should be preserved in a suitable medium in 37°C. Preservation media provides requirement for spermatozoa and affects its motility, viability, and fertility. Sucrose is one of the important components ...

HASAN HASANI BAFERANI, HEIDAR TAVILANI, HOJATOLLAH SAEIDI, MAHMOUD DOOSTI, SEYED MOHAMMAD HOSSEINIPANAH,

Background: The lipid peroxides and their degradation products are highly toxic to spermatozoa and may play a major role in sperm dysfunction. The purpose of this study was to determine the level of lipid peroxidation as indicated by malondialdehyde (MDA) in the spermatozoa and seminal plasma of asthenozoospermic and normozoospermic males. In addition, correlation of lipid peroxidation with mot...

Journal: :The Journal of General Physiology 1953
A. W. Blackshaw

1. Ram and bull spermatozoa suspended in a glucose-sodium chloride solution rapidly lose motility at relatively high dilutions. The substitution of chloride-free diluents does not alter the phenomenon. 2. The rapid immobilization of ram and bull spermatozoa due to high dilution may be partially prevented by the addition of supernatants of either ram or bull semen, although motility is not maint...

Journal: :Journal of cell science 1995
G Perchec C Jeulin J Cosson F André R Billard

Carp spermatozoa are immotile in seminal plasma or in saline solution of high osmolality (> 400 mosmol kg-1). These 'quiescent' spermatozoa initiate a progressive forward motility when transferred in freshwater or in saline solution with low osmolality (< 160 mosmol kg-1). In this study we investigated 'in vitro' the relationship between sperm ATP content (measured by bioluminescence) and sperm...

Journal: :Reproduction 2006
K Ashizawa G J Wishart S Katayama D Takano A R A H Ranasinghe K Narumi Y Tsuzuki

The signal transduction pathways involved in the regulation of the acrosome reaction and motility of fowl spermatozoa were investigated. The motility and acrosomal integrity of fowl spermatozoa in TES/NaCl buffer, with or without homogenised inner perivitelline layers (IPVL), prepared from laid fowl eggs, was almost negligible at 40 degrees C. In the presence of 2 mmol CaCl(2)/l at 40 degrees C...

Journal: :Chalaza journal of animal husbandry 2023

This research was conducted to determine the effect of glucose supplementation in liquid semen diluent on quality Kampung Unggul Balitbangtan (KUB) spermatozoa. The chicken used is KUB as many 8 tails. procedure consists of; manufacture diluent, collection semen, dilution storage, and evaluation semen. Evaluation carried out motility, viability, abnormalities, plasma membrane integrity at 0 3 d...

In this study, the formation of hydrogen peroxide (H2O2) by chilled goat spermatozoa was measured. Furthermore, the effects of dead spermatozoa on motility characteristics were studied. Fresh collected ejaculates from five Shami bucks were centrifuged and virtually all seminal plasma was removed. A part of the collected spermatozoa was killed by two ways: the first by repe...

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