Sperm Flagellum Volume Determines Freezability in Red Deer Spermatozoa
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چکیده
منابع مشابه
Sperm Flagellum Volume Determines Freezability in Red Deer Spermatozoa
The factors affecting the inter-individual differences in sperm freezability is a major line of research in spermatology. Poor sperm freezability is mainly characterised by a low sperm velocity, which in turn is associated with low fertility rates in most animal species. Studies concerning the implications of sperm morphometry on freezability are quite limited, and most of them are based on spe...
متن کاملMale fertility in natural populations of red deer is determined by sperm velocity and the proportion of normal spermatozoa.
Male reproductive success is determined by the ability of males to gain sexual access to females and by their ability to fertilize ova. Among polygynous mammals, males differ markedly in their reproductive success, and a great deal of effort has been made to understand how selective forces have shaped traits that enhance male competitiveness both before and after copulation (i.e., sperm competi...
متن کاملStudyCapture myopathy in red deer and wild goat
This syndrome is a shock-like hyper metabolic myopathy triggered in susceptible animals by stress. Capture myopathy (C.M.) is a commonly occurring condition in mammals following trapping and transportation. In this case 12 to 24 hours after transportation of red deer (Cevus elaphus) and wild goats (Capra ibex) clinical signs such as: muscular tremor, ataxia, recumbency, hyperthermia, tachyca...
متن کاملDetrimental Effects of Non-Functional Spermatozoa on the Freezability of Functional Spermatozoa from Boar Ejaculate
In the present study, the impact of non-functional spermatozoa on the cryopreservation success of functional boar spermatozoa was evaluated. Fifteen sperm-rich ejaculate fractions collected from five fertile boars were frozen with different proportions of induced non-functional sperm (0--native semen sample-, 25, 50 and 75% non-functional spermatozoa). After thawing, the recovery of motile and ...
متن کاملSperm design and sperm function.
Spermatozoa vary enormously in their form and dimensions, both between and within species, yet how this variation translates into fertilizing efficiency is not known. Sperm swimming velocity is a key determinant of male fertilization success, but previous efforts to identity which sperm phenotypic traits are associated with swimming velocity have been unsuccessful. Here, we examine the relation...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2014
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0112382