The mechanism whereby the inherently high variation in ovary size and the total number of
high-quality oocytes in ovaries (ovarian reserve) impact on ovarian function and fertility …

BACKGROUND The complexity of fertilization failure during assisted reproductive
technologies (ART) is often under-appreciated, as this failure can occur at any number of …

3000 new references added since the first editionGives information necessary to produce
embryos totally through in vitro techniques Shows commercial applications of embryo and …

STUDY QUESTION What is the association between the number of oocytes retrieved and
the live birth rate (LBR) following first IVF treatment cycles in China? SUMMARY ANSWER …

BACKGROUND The significance of the high variation in numbers of follicles produced
during reproductive cycles in humans and cattle is unknown. METHODS We selected beef …

Superstimulation in donor cows increases the number of cumulus-oocyte complexes (COC),
but when compared to in vivo maturation, in vitro maturation results in only half as many …

BACKGROUND Fertility loss during female ageing is associated with increasing basal FSH
and decreasing anti-Müllerian hormone (AMH) concentrations, together with compromised …

Objective To evaluate the correlation between total gonadotropin dose and live birth rate.
Design Retrospective analysis. Setting Not applicable. Patient (s) A total of 658,519 fresh …

The development of a complex technology such as in vitro fertilization (IVF) requires years of
experimentation, sometimes comparing several species to learn how to create the right in …

The current knowledge is reviewed concerning correlations between follicular development
in the cow and the competence of matured oocytes to develop into an embryo following IVF …