Natural Sperm Birefringence Can be Used to Estimate Sperm Viability and Morphology
نویسندگان
چکیده
منابع مشابه
Sperm Viability and Sperm Competition in Insects
Sperm quality plays an important role in vertebrates in determining which male has the advantage when two or more males compete to fertilize a female's ova. In insects, however, the importance of sperm quality has never been considered, despite sperm competition being widespread and well studied in this group. We tested the hypothesis that sperm viability, measured as the proportion of live spe...
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Experimental studies in insects have shown how sperm competition can be a potent selective force acting on an array of male reproductive traits . However, the role of sperm quality in determining paternity in insects has been neglected, despite the fact that sperm quality has been shown to influence the outcome of sperm competition in vertebrates . A recent comparative analysis found that males...
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X and Y chromosome paints were developed from sorted yak chromosomes for sexing cattle spermatozoa. Clear hybridization signals were obtained for every spermatozoon using a modified sperm decondensation protocol and fluorescence in situ hybridization (FISH). The procedure was evaluated using the established Beltsville sperm sexing technology, which separates spermatozoa by flow cytometry into X...
متن کاملMore Pitfalls with Sperm Viability Staining and a Viability-Based Stress Test to Characterize Sperm Quality
Sperm viability (SV), the proportion of live sperm in a sample, is a widely applied measure of sperm quality but few studies test its robustness. At least three reasons make SV problematic as a surrogate for sperm quality. First, reviewing the ecological literature revealed that previously identified methodological pitfalls have not been overcome, including low cross-study standardization of pr...
متن کاملOxidative stress markers: Can they be used to evaluate human sperm quality?
OBJECTIVE To study the effects of an acute lifestyle change in human semen oxidative stress (OS) by applying seminal parameters and OS markers and to study the feasibility of mid-infrared spectroscopy with Fourier transform infrared spectroscopy (FT-IR) as a complementary tool to evaluate the effects of OS on human sperm samples. MATERIAL AND METHODS Sperm samples were collected from healthy ...
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ژورنال
عنوان ژورنال: Systems Biology in Reproductive Medicine
سال: 2010
ISSN: 1939-6368,1939-6376
DOI: 10.3109/19396368.2010.503360