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Showing 1 to 20 of 49 for “"sperm motility"”.

  1. Novel Modulators of Human Sperm Motility

    King, LouiseUniversity of Dundee2014

    … and is most commonly characterised by asthenozoospermia (reduced sperm motility). Incredibly, there is currently no known treatment for this condition, and the only option is Artificial Reproduction Technology (ART) which is expensive and invasive. The development of a novel treatment would …

    dundee Repository record

  2. Genome-wide association study for sperm motility in pigs

    Diniz, Daniele BotelhoUniversidade Federal de Viçosa2013

    … acordo com vários critérios, sendo a motilidade espermática o mais utilizado e importante. A motilidade, essencial para a fertilização, refere-se ao movimento retilíneo dos espermatozóides. Apesar da importância da avaliação de características de qualidade do sêmen de reprodutores, …

    brazil-ufv Repository record

  3. Investigating the effect of phosphodiesterase inhibitors on human sperm motility and function

    Rice, AnneUniversity of Dundee2011

    … male infertility. This may include problems with sperm concentration, motility and/or morphology. Sperm motility defects are associated with most cases of male infertility and provide problems for sperm reaching, binding to and penetrating the oocyte therefore impacting on fertilisation success. …

    dundee Repository record

  4. The Kallikrein-Related Peptidases hK2 and PSA with Emphasis on Genetic Variation, Secretion, and Sperm Motility

    Sävblom, CharlottaLund University2008

    … the semenogelins in semen, which releases motile sperm, and low levels of PSA have been associated with low sperm motility. The present objective was to evaluate factors that might influence release of hK2 and PSA, and to study those two proteins with regard to their levels in seminal plasma and …

    lund Repository record

  5. Effect of different equilibration periods pre-cryopreservation on post-thaw sperm motility in Nguni and Boran bulls

    University of Pretoria2010

    … semen is frozen, generally only about 50% of the spermatozoa survive the cryopreservation process. Thus, any factors possibly affecting the survival of spermatozoa through the numerous freezing-thawing steps should be studied, in order to identify the optimal conditions for the survival of …

    pretoria Repository record

  6. Growth Performance, Carcass Traits, and Reproductive Characteristics in Boars Fed Diets Supplemented With an Organic Source of Selenium

    Speight, Susan MichelleVirginia Tech2010

    … over time, but the negative impact day had on sperm motility was less pronounced with Sel-Plex boars. Effects of treatment x day were detected for progressively motile (P = 0.02) and rapidly moving (P = 0.03) spermatozoa, sperm path velocity (VAP; P = 0.05), and average velocity (VSL; P = …

    vt Repository record

  7. Role of second generation phosphodiesterase inhibitors on mammalian sperm mobility

    Madamidola, OladipoAbertay University2015

    … and this is mostly characterised by reduced sperm motility (asthenozoospermia). Assisted Reproduction Technology (ART) is the only treatment option available for this condition. Over 20 years ago, non-selective phosphodiesterase inhibitors (PDEi), such as pentoxifylline, were shown to enhance …

    abertay Repository record

  8. Comparative evaluation of different extenders of bull semen stored under different conditions

    Raseona, Andrea Motswetla2015

    … at 24 °C, 17 °C, 12 °C and 5 °C respectively. Sperm motility rates were analysed after 0, 24, 48 and 72 hours. Morphology, viability and sperm DNA fragmentation were analysed after 72 hours. The study was replicated four times and data was analysed by ANOVA. Triladyl had higher sperm viability …

    venda Repository record

  9. AVALIAÇÃO ANDROLÓGICA E ULTRASSONOGRAFIA DOPPLER EM GARANHÕES QUARTO DE MILHA

    Macêdo, Iara NóbregaUniversidade Federal da Paraíba2017

    … correlation between testicular hemodynamics and sperm quality, emphasizing sperm motility. Six stallions of a quarter of a mile, healthy, were used in different reproductive conditions, located in the state of Paraíba. In the ultrasound evaluation Doppler mode, the indexes of pulsatility (PI) and …

    brazil-ufpb Repository record

  10. SENSITIVITY AND RESILIENCE OF CNIDARIAN EARLY LIFE PROCESSES TO ANTHROPOGENIC CLIMATE CHANGE

    Glass, Benjamin2025

    … enzyme soluble adenylyl cyclase (sAC) controls sperm motility in the temperate coral Astrangia poculata. Notably, the fact that this pathway relies on the alkalinization of the sperm cytosol suggests the potential for reduced sperm motility under ocean acidification for A. poculata and other …

    penn Repository record

  11. Enhancing Boar Reproductive Performance for Purposes of Artificial Insemination

    Kozink, Daniel MichaelVirginia Tech2002

    … boars for semen collection and increased spermatozoal output, and 2) determine the effects of dietary L-carnitine supplementation on boar libido, semen quality, sperm production, and maintenance of sperm motility during liquid storage. Experiment 1 utilized lean-type, terminal-line boars …

    vt Repository record

  12. Embryo and Gamete Development Upon Exposure to CCA Components: CrO3, CuO, and AS2O5

    Mahmoud, Nerbana Talaat-Elsebaei2019

    … development, oocyte maturation and integrity and sperm function.</p> <p>A two-cell embryo assay was proposed to detect embryotoxicity of the CCA components and their mixtures. Total blastocyst cell numbers, analyzed by fluorescent DNA-binding, were the indicator of embryotoxicity on the …

    odu Repository record

  13. Biochemical and physiological changes in bovine sperm during extended incubation under aerobic and anaerobic conditions

    Krzyzosiak, J.The University of Waikato2000

    … damage eventuating in the loss of fertility of sperm cells. This has been known for many years and current production systems for storage of semen in the liquid state attempt to minimise oxidative stress. This is achieved by reducing oxygen tension in the diluent through nitrogen gassing and by …

    waikato-masters Repository record

  14. Marine invertebrate sperm: assessment of sperm quality using computer-aided sperm analysis

    Bennett, MoniqueUniversity of the Western Cape2019

    … midae (Gastropoda) were investigated. The sperm morphology and base-line data were gathered concerning the sperm concentration, motility and sperm kinematic parameters using computer-aided-sperm analysis (CASA). Sperm morphology and sperm motility play an important role in determining sperm …

    western-cape Repository record

  15. A study of the influence of sperm surface proteins on the activity of avian spermatozoa In-vitro and In-vivo

    Steele, Michael1992

    Chicken spermatozoa undergo a post-testicular maturation process similar to that reported for mammals. Association of secreted epididymal proteins and glycoproteins with the sperm surface appears to be complete at the anterior ductus deferens. However, antigenic change to, and glycosylation and …

    abertay Repository record

  16. Compounds Modulating Calcium and Motility in Human Spermatozoa

    Cochrane, ClairUniversity of Dundee2015

    … of drugs to target asthenozoospemic (low sperm motility) males is a valuable area of research, with clinical potential to improve the take home baby rate.<br/><br/>Previous work using a Flex Station HTS assay and calcium as a surrogate for motility, identified 10 hit compounds from the UoD …

    dundee Repository record

  17. Evaluation of Tom Fertility as Affected by Dietary Fatty Acid Composition

    Culver, Judd NilesVirginia Tech2002

    … dietary lipids on tom body weights, fertility, motility, perivitelline layer sperm penetration percent, and live vs. dead sperm were analyzed. Whereas body weight increased linearly from 31 to 56 weeks of age (WOA), there was no effect of dietary treatment. As measured by the Accudenz® …

    vt Repository record

  18. Measurement of cyclic nucleotides in human sperm: experimental and clinical application

    McBrinn, RachelAbertay University2020

    The biochemical state of human sperm is critical for fertilisation potential, yet no convenient or reliable methods are available to assess essential second messengers. Cyclic nucleotides (cAMP and cGMP) play a crucial role as signalling molecules for capacitation, motility, and acrosome reaction …

    abertay Repository record

  19. The combinative effect of soluble suLeA glycan and specialized bovine semen extender, FSRD4+, on bull sperm quality

    Messer, AlexUniversity of Illinois at Urbana-Champaign2019

    … the U.S. as the preferred method to store bovine sperm due to convenience despite damage to sperm during processing and thawing. For this reason, one of our objectives was to determine if a liquid extender, FSRD4+, could extend the lifespan of sperm by days. Since longevity with minimal sperm …

    uiuc Repository record

  20. The effect of sperm apoptosis, Reactive Oxygen Species (ROS) and semen sample handling on sperm parameters and Assisted Reproductive Technology (ART) outcomes

    Santoso, BenedictaEdith Cowan University, Research Online, Perth, Western Australia2020

    … to the potential sources and clinical impact of sperm apoptosis and reactive oxygen species (ROS) in the context of assisted reproductive technology (ART). This thesis encompasses three independent studies, each of which addresses a single aim related to different aspects of male infertility and …

    edithcowan Repository record

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