The ability of an oocyte to undergo successful cytoplasmic and nuclear maturation,
fertilization and embryo development is referred to as the oocyte's quality or developmental …

Viable lambs can be produced after transfer of in vitro–derived embryos from oocytes
harvested from prepubertal lambs. However, this occurs at a much lower efficiency than from …

Oocytes from prepubertal animals have a reduced ability to undergo normal embryo
development and produce viable offspring. The correct quantity, activity and cytoplasmic …

In vitro maturation (IVM) is not a routine assisted reproductive technology (ART) for oocytes
collected from early antral (EA) follicles, a large source of potentially available gametes …

This study aimed to evaluate the effects of marjoram extract on oocyte maturation and gene
expression in sheep oocytes and embryos. The first experiment studied the effect of the …

This study aimed to investigate the effects of IL1β and TNFα on growth and maturation of
oocytes from small follicles (1–3 mm) during in vitro culture. To this end, cumulus–oocyte …

Chromosomal aberrations are one of the major causes of embryo developmental failures in
mammals. The occurrence of these types of abnormalities is higher in in vitro-produced (IVP) …

Despite established microscopic markers of feline oocyte quality, little is known about their
ultrastructural traits. To the best of our knowledge, there is no published report analysing the …

It is believed the temporary meiosis arrest with roscovitine or cycloheximide may improve the
in vitro developmental competence of oocytes in different animal species. However, little is …

Temporary meiosis arrest with cyclin-dependent kinases inhibitors has been proposed in
order to improve the quality of in vitro matured oocytes. In sheep, however, this phenomenon …