Contents Over the past decade, there has been increasing interest in the application of
reproductive technology to the conservation and management of natural populations of …

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 …

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 …

Evolutionary theory proposes that exaggerated male traits have evolved via sexual
selection, either through female mate choice or male–male competition. While female …

Assisted reproductive techniques (gamete cryopreservation, artificial insemination, embryo
transfer, and in vitro fertilization) allow to propagate small fragmented populations of wild …

In the present study, computer‐automated sperm head morphometry of epididymal samples
was used to determine if sperm head area and shape are useful measurements for …

We have compared two methods for salvaging epididymal sperm from post-mortem samples
from Iberian red deer. Of each pair of testicles (29 samples), one cauda epididymis was …

The main goal of this study was to investigate the potential protective effects of enzymatic
and nonenzymatic antioxidants on cryopreservation injuries to red deer epididymal …

We have carried out two experiments to study the cryobiology of red deer epididymal
spermatozoa and to improve freezing extenders:(1) effect of extender (Tris-citrate–fructose) …

Testosterone has been proposed to have a dual effect, enhancing sexual traits while
depressing parasite resistance in males. Here, we test this hypothesis in red deer …