Results 21 to 30 of about 66,025 (308)

Reduced glutathione and cysteine hydrochloride on crossbred bull semen [PDF]

open access: yes, 2012
Over the last few years, good quality freezable semen was not utilized effectively due to less knowledge about the freezability of semen. One reason is the lack of sufficient antioxidants in the seminal plasma and semen extender.
P Perumal
core   +2 more sources

Guaifenesin and increased sperm motility: a preliminary case report [PDF]

open access: yes, 2010
Gary Means1, Cristóbal S Berry-Cabán2, Kurt Hammermeuller11Department of Family Medicine, 2Department of Research, Womack Army Medical Center, Fort Bragg, NC, USABackground: A review of the literature and an extensive Medline search
Cris Berry-Caban   +3 more
core   +1 more source

Exploration of the association between obesity and semen quality in a 7630 male population. [PDF]

open access: yesPLoS ONE, 2015
This study aimed to explore the association between body mass index (BMI), other anthropometric indexes and semen quality in a general male population in Taiwan.
Chih-Wei Tsao   +5 more
doaj   +1 more source

Gene Expression and Protein Synthesis in Mitochondria Enhance the Duration of High-Speed Linear Motility in Boar Sperm

open access: yesFrontiers in Physiology, 2019
Sperm motility patterns are continuously changed after ejaculation to fertilization in the female tract. Hyperactivated motility is induced with high glucose medium in vitro or the oviduct fluids in vivo, whereas sperm maintain linear motility in the ...
Zhendong Zhu   +11 more
doaj   +1 more source

Rheotaxis facilitates upstream navigation of mammalian sperm cells [PDF]

open access: yes, 2014
A major puzzle in biology is how mammalian sperm maintain the correct swimming direction during various phases of the sexual reproduction process. Whilst chemotaxis may dominate near the ovum, it is unclear which cues guide spermatozoa on their long ...
Dunkel, Jörn   +8 more
core   +1 more source

Motility enhancement of human spermatozoa using electrical stimulation in the nano-Ampere range with enzymatic biofuel cells.

open access: yesPLoS ONE, 2020
Sperm motility is a crucial factor for normal fertilisation that is partly supported by mitochondrial activity. Enzymatic biofuel cells (EBFCs) generate electric currents by an electron grade from anodic to cathodic electrodes in a culture media.
Tai Eun Shin   +11 more
doaj   +1 more source

Computerized Sperm Motility and Application of Sperm Cryopreservation [PDF]

open access: yesArchives of Andrology, 1988
An objective method for measuring sperm motion characteristics was developed on an Intellect 100 Quantel Image Analysis System suitable for various image cytometric applications. It provided overall analysis of percent motility (% MS) as well as individual and mean measurements of motion characteristics, including vigor characteristics such as ...
J, Auger, J P, Dadoune
openaire   +2 more sources

Hydrodynamic propulsion of human sperm [PDF]

open access: yes, 2009
The detailed fluid mechanics of sperm propulsion are fundamental to our understanding of reproduction. In this paper, we aim to model a human sperm swimming in a microscope slide chamber.
Green, Richard B.   +7 more
core   +1 more source

Sperm motility and MSP [PDF]

open access: yesWormBook, 2006
Form follows function, and this maxim is particularly true for the nematode sperm cell. Motility is essential for fertilization, and the process of spermatogenesis culminates in the production of a crawling spermatozoon with an extended pseudopod.
openaire   +2 more sources

Semen collection and evaluation of captive coatis (Nasua nasua)

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2012
Semen samples (n=105) were collected through eletroejaculation from six adult male coatis (Nasua nasua) between January 2007 and December 2008 at Universidade Federal de Mato Grosso Zoo, Cuiabá, Brazil. Mean values were: volume (mL); concentration (sperm/
R.C.R. Paz   +5 more
doaj   +1 more source

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