Results 151 to 160 of about 154,792 (190)
A Comparative Review of Fertility and Semen Assessment Techniques in Farm Animals. [PDF]
Animals (Basel)Hassanine NNAM +7 more
europepmc +1 more source
Potential of ant nest extract (Hydnophytum formicarum) for protection of testicular morphometry, epididymal functions, and sperm quality in male rats with alloxan- induced diabetes. [PDF]
Narra JRoslizawaty R +8 more
europepmc +1 more source
The evolution of sperm morphometry in pheasants [PDF]
Journal of Evolutionary Biology, 2007 Abstract Post‐copulatory sexual selection is thought to be a potent evolutionary force driving the diversification of sperm shape and function across species. In birds, insemination and fertilization are separated in time and sperm storage increases the duration of sperm–female interaction and hence the opportunity for sperm ...
Loïc Lesobre
exaly +8 more sources
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Relationships between sperm morphometry and sperm motility in the Atlantic salmon
Journal of Fish Biology, 2002Relationships between spermatozoal design and swimming behaviour were investigated using the significant natural variance in sperm traits in Atlantic salmon Salmo salar. In vitro motility and fertilization experiments were conducted with 86 Atlantic salmon to measure sperm form and function under natural fertilization conditions. Spermatozoal traits of
Matthew Gage
exaly +4 more sources
Automatic evaluation of ram sperm morphometry
Theriogenology, 2012This study was designed to develop a new method based on fluorescence microscopy and image analysis for the automatic assessment of sperm morphometry and to study separately the effect of drying and fixation on the parameters of head sperm morphometry in the ram. The study was divided into two experiments.
Jesus Yaniz +2 more
exaly +3 more sources
Computer assisted sperm morphometry in mammals: A review
Animal Reproduction Science, 2015Computer-assisted sperm morphometry analysis (CASMA or ASMA) systems were developed to reduce the subjectivity of sperm morphology assessement. This review focuses on a complete description of the CASMA technique, including recent developments, factors of variation, results in the different species and possible applications.
Jesus Yaniz, Pilar Santolaria
exaly +3 more sources
Sperm morphometry in the Atlantic salmon
Journal of Fish Biology, 1998This study sampled sperm from wild Atlantic salmon to explore relationships between sperm form and function. Detailed measurements of sperm morphometry (head, flagellum and total length) and sperm activity (longevity and % motility) were made from 24 reproductively active males (13 anadromous and 11 mature parr) on two occasions post‐stripping.
M. J. G. Gage +2 more
openaire +2 more sources
Characterization of ram (Ovis aries) sperm head morphometry using the Sperm-Class Analyzer [PDF]
Theriogenology, 2010 Sperm morphology has been identified as a characteristic that can be useful in the prediction of fertilizing capacity. The aim of the current study was to characterize ram sperm heads morphometrically as a basis for future studies on the relationship between sperm quality and male fertility. For this purpose, ejaculates from 241 mature rams (Ovis aries)
José Julián Garde López-Brea +2 more
exaly +4 more sources
Theriogenology, 2014
The aim of this study was to develop a new method that allows morphometric assessment of the sperm nucleus and acrosome in the ram using fluorescence microscopy and free software. The study was divided into three experiments. In the first experiment, semen smears from 20 ejaculates were fixed and labeled with a propidium iodide-pisum sativum agglutinin
Jesus Yaniz +2 more
exaly +3 more sources
The aim of this study was to develop a new method that allows morphometric assessment of the sperm nucleus and acrosome in the ram using fluorescence microscopy and free software. The study was divided into three experiments. In the first experiment, semen smears from 20 ejaculates were fixed and labeled with a propidium iodide-pisum sativum agglutinin
Jesus Yaniz +2 more
exaly +3 more sources