The spermatozoon is a highly differentiated and polarized cell, with two main structures: the
head, containing a haploid nucleus and the acrosomal exocytotic granule, and the flagellum …

Theoretical and practical knowledge of sperm function is an essential requirement in almost
every aspect of modern reproductive technology, if the overarching objective is the eventual …

Evidence exists to suggest detrimental effects of heat stress on male fertility. This study was
designed to assess the effects of scrotal heat stress on mature and developing sperm in a …

Male fertility has seldom been studied in natural populations because it has been assumed
that strong selection would result in uniformly high values among males, and therefore …

Fertility preservation is an important type of frontier scientific research in the field of
reproductive health. The culture of ovarian cortices to i) initiate primordial follicle growth and …

More than 100 studies have examined whether environmental or occupational exposures of
parents affect the sex ratio of their offspring at birth. For this review, we searched Medline …

Although maternal dominance and good condition are frequently associated with raised
offspring sex ratios in mammals, the key factor may be female testosterone, which not only …

Fe (2)(+)/ascorbate, hydrogen peroxide (H (2) O (2)), and hypoxanthine/xanthine oxidase
(XOD) are commonly used for inducing oxidative stress on spermatozoa. A comparative …

Sperm design and velocity play key roles in influencing sperm performance and, therefore,
can determine fertilization success. Several interspecific studies have demonstrated how …

Sex allocation research in mammals has focussed almost exclusively on mothers under the
assumption that the male contribution is genetically determined during meiosis and …