Oocyte maturation is a long process during which oocytes acquire their intrinsic ability to
support the subsequent stages of development in a stepwise manner, ultimately reaching …

Incidences of altered development and neoplasia of male reproductive organs have
increased during the last 50 years, as shown by epidemiological data. These data are …

Contents In general, the majority of immature bovine oocytes fail to develop to the blastocyst
stage following maturation, fertilization and culture in vitro. The evidence suggests that while …

It is generally accepted that mammalian preimplantation embryos are sensitive to their
environment and that conditions of culture can affect future growth and developmental …

Recent data have demonstrated that fast‐cleaving embryos produced in vitro are more likely
to develop to blastocyst stage, and that the postfertilization culture system used impacts …

The ultimate goal of in vitro embryo culture systems is to perfectly mimic the condition of
oocyte maturation, fertilization and embryo development. These systems are far more …

Aim of our study was to clarify if the occurrence of apoptosis in oocytes and cumulus cells is
correlated to bovine oocyte developmental competence. The cumulus–oocyte complexes …

Poor oocyte competence contributes to infertility in humans and livestock species. The
molecular characteristics of such oocytes are generally unknown. Objectives of the present …

Problem: Infertility can accompany mastitis in cattle. Involvement of tumor necrosis factor‐α
(TNF‐α) in this phenomenon is suggested by observations that circulating concentrations of …

The quality of oocytes plays a key role in a proper embryo development. In humans, oocytes
of poor quality may be the cause of women infertility and an important obstacle in successful …