Results 11 to 20 of about 14,069,776 (341)

Male sperm storage impairs sperm quality in the zebrafish [PDF]

open access: yesScientific Reports, 2021
Variation in sperm traits is widely documented both at inter- and intraspecific level. However, sperm traits vary also between ejaculates of the same male, due for example, to fluctuations in female availability.
Silvia Cattelan, Clelia Gasparini
doaj   +5 more sources

Sperm competition, sperm numbers and sperm quality in muroid rodents. [PDF]

open access: yesPLoS ONE, 2011
Sperm competition favors increases in relative testes mass and production efficiency, and changes in sperm phenotype that result in faster swimming speeds. However, little is known about its effects on traits that contribute to determine the quality of a
Laura Gómez Montoto   +7 more
doaj   +4 more sources

Restoring Sperm Quality Post-Cryopreservation Using Mitochondrial-Targeted Compounds

open access: yesAntioxidants, 2022
While critical for male fertility preservation, cryopreservation damage reduces sperm quality and fertilization potential. This study investigated whether the addition of mitochondrial-targeted, antioxidant compounds, also known as Mitochondrial ...
Macarena Gonzalez   +5 more
doaj   +2 more sources

Evaluation of sperm fertilizing ability using the Sperm Quality Analyzer [PDF]

open access: yesJournal of Developmental and Physical Disabilities, 1997
The Sperm Quality Analyzer is an inexpensive device which provides a quantitative estimation of sperm motility. To evaluate the fertilizing ability of human spermatozoa using a Sperm Quality Analyzer, correlations amongst the sperm motility index, the sperm penetration index (as assessed using the sperm penetration assay; SPA), and the fertilization ...
H, Shibahara   +5 more
exaly   +3 more sources

Effect of L-carnitine on sperm quality during liquid storage of boar semen [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2020
Objective This study was conducted to investigate the effect of L-carnitine on the pig semen characteristics during storage. Methods Spermatozoa samples were examined for spermatozoa quality and then randomly divided into 5 groups: 0 (control), 12.5, 25,
Kang Yang   +7 more
doaj   +2 more sources

Sperm telomere length as a parameter of sperm quality in normozoospermic men [PDF]

open access: yesHuman Reproduction, 2016
Could sperm telomere length (STL) represent a novel parameter and biomarker of sperm quality?STL is associated with standard semen quality parameters and, more importantly, it is significantly associated with levels of DNA fragmentation and sperm protamination.Telomeres are fundamental for genome integrity.
Alberto Ferlin   +2 more
exaly   +4 more sources

Wu Zi Yan Zong Wan enhances sperm quality in boars by regulating spermatogenesis-related pathways and gut microbiota [PDF]

open access: yesFrontiers in Veterinary Science
Wu Zi Yan Zong Wan (WZYZW) is a well-known Traditional Chinese Medicine formula used to treat low sperm quality, although its underlying therapeutic mechanism remains incompletely elucidated.
Weijie Lv   +9 more
doaj   +2 more sources

Sperm competition selects for sperm quantity and quality in the Australian Maluridae.

open access: yesPLoS ONE, 2011
When ejaculates from rival males compete for fertilization, there is strong selection for sperm traits that enhance fertilization success. Sperm quantity is one such trait, and numerous studies have demonstrated a positive association between sperm ...
Melissah Rowe, Stephen Pruett-Jones
doaj   +5 more sources

Semen quality and sperm DNA fragmentation in cancer patients undergoing sperm cryopreservation [PDF]

open access: yesInvestigative and Clinical Urology, 2023
Purpose: We compared semen quality and sperm DNA fragmentation in cancer patients who underwent sperm banking and controls who underwent sperm cryopreservation for assisted reproductive technology (ART).
Seung-Hun Song   +7 more
doaj   +1 more source

A Sperm Quality Detection System Based on Microfluidic Chip and Micro-Imaging System

open access: yesFrontiers in Veterinary Science, 2022
Sperm quality assessment is the main method to predict the reproductive ability of livestock. The detection of sperm quality of livestock is of great significance to the application of artificial insemination and in vitro fertilization.
Xiaoqing Pan   +11 more
doaj   +1 more source

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