Results 161 to 170 of about 154,792 (190)
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The effect of selected staining techniques on bull sperm morphometry
Animal Reproduction Science, 2015Sperm morphometry has some value as an indicator of reproductive capacity in males. In laboratory practice a variety of slide-staining methods are used during morphological evaluation of semen to predict male fertility. The aim of this study was to determine the effect of staining of semen using four different techniques on the morphometry of the bull ...
Katarzyna Andraszek +2 more
exaly +3 more sources
Effects of Cryopreservation on Bull Sperm Head Morphometry
Journal of Andrology, 1998ABSTRACT: Artificial insemination using cryopreserved semen is a common management tool of the contemporary livestock producer. However, cryopreservation is detrimental to sperm function and fertility, killing some 50% of the spermatozoa during the process. Prediction of cryopreservation damage from prefreeze samples remains elusive.
C G, Gravance +4 more
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Selectivity of the human sperm-zona pellucida binding process to sperm head morphometry
Fertility and Sterility, 1997To obtain quantitative measures of morphometric selectivity of the human spermzona pellucida binding process as determined by light microscopy.Fully automated sperm head morphometric based on a 32-dimensional parameterization of images of Shorr-stained sperm.
C, Garrett, D Y, Liu, H W, Baker
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Automated Sperm Morphometry Analysis (ASMA) in the Rabbit
Journal of Andrology, 1995ABSTRACT:New methods of specimen preparation were developed and a new method of objective, automated sperm morphometry analysis (ASMA) was performed to reduce the technical variation in the rabbit sperm morphology assay. The optimal staining procedure was a modified GZIN stain, which allowed the ASMA instrument to accurately recognize the distal end of
C G, Gravance, R O, Davis
exaly +3 more sources
Morphology, morphometry and chromatin distribution in llama sperm nuclei
Reproduction in Domestic Animals, 2018ContentsThe objectives of this study were as follows: (i) to describe and evaluate the frequencies of different morphologies of llama sperm nuclei, (ii) to determine morphometric values of nuclear parameters, (iii) to describe and estimate the frequencies of different classes of chromatin distribution and (iv) to measure haploidDNAcontent and analyse ...
S Giuliano, H Cisale, MR Ferrari
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Human sperm morphometry and smoking, caffeine, and alcohol consumption
Reproductive Toxicology, 1997The purpose of this study is to determine whether sperm nuclear size, shape, and chromatin texture parameters are associated with lifestyle exposures including smoking, caffeine, and alcohol consumption. Eighty-six healthy male volunteers (ages 18-35), recruited through newspaper advertisements, provided a semen, blood, and urine sample and completed a
M F, Vine +3 more
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Morphometry of Sperm Head in Rats Treated with an Antifungal Medication
Bulletin of Experimental Biology and Medicine, 2019The parameters of sperm head in Wistar male rats orally treated with antifungal agent for 48 days during spermatogenesis were studied by the method of image analysis. The degree of roundness (roughness) of sperm head was calculated. Significant differences in morphometric parameters of sperm head, such as length, width, head angle, and roundness were ...
N V, Zaitseva +4 more
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Accuracy and precision of the CellForm-Human automated sperm morphometry instrument
Fertility and Sterility, 1992To evaluate the accuracy and precision of the CellForm-Human (CFH) automated sperm morphometry instrument (Motion Analysis Corp., Santa Rosa, CA).Clinical and research andrology and in vitro fertilization laboratories.Individuals undergoing semen evaluation and infertility work-up.Coefficients of variation for repeated measures of the same sperm were 1%
R O, Davis +5 more
exaly +3 more sources
Motile sperm head morphometry in relation to sperm kinematics and freezability in cats
TheriogenologySperm head morphometry exhibits significant variation across species, among individuals, and even within single ejaculates, potentially influencing sperm functions such as motility and cryotolerance. The aim of this study was to evaluate whether sperm head morphometry affects sperm kinematics and freezability in domestic cats.
Sylwia Prochowska +3 more
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Animal Reproduction Science, 2007
The Sperm Class Analyzer was used to investigate the effect of freeze-thawing procedure on Florida buck sperm head morphometry, and to relate possible changes in sperm head dimensions to cryopreservation success. Semen samples (n=76) were frozen with tris and milk-based extenders and thawed.
M, Hidalgo, I, Rodríguez, J M, Dorado
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The Sperm Class Analyzer was used to investigate the effect of freeze-thawing procedure on Florida buck sperm head morphometry, and to relate possible changes in sperm head dimensions to cryopreservation success. Semen samples (n=76) were frozen with tris and milk-based extenders and thawed.
M, Hidalgo, I, Rodríguez, J M, Dorado
openaire +2 more sources