Germinal vesicle oocytes obtained by ovum pick-up (OPU) on a random day are
heterogeneous in terms of chromatin maturity, and those with an intermediate degree of …

Differences in reproductive physiology between cattle breeds may help to explain distinct
responses to assisted reproductive techniques and to define breed-specific protocols with …

We aimed with the present study to evaluate the effects of FSH treatment (200 mg) split in
four or six administrations on ovarian follicle stimulation and in vitro oocyte competence for …

The low efficiency of embryo production in Holstein cows during early lactation presents
many challenges for animal production. To improve its efficiency, the outcomes of single …

Follicular wave synchronization (FWS) before ovum pick-up (OPU) is one of the strategies
used to improve the efficiency of in vitro embryo production (IVP). This study aimed to …

It may be possible to avoid inadequate in vitro culture conditions by incubating gametes or
embryos in the oviducts for a short time. Ideally, an optimized procedure should be devised …

We examined the effects of IVM duration on rates of Korean Native Cow (KNC) first polar
body extrusion, embryo development and offspring. Cumulus oocytes complexes were …

With the introduction of multiple ovulation, embryo recovery and transfer techniques (MOET)
plus embryo freeze–thaw methods in the early 1980s, the breeding industry has the tools in …

The present study evaluated the efficacy of superstimulation with p-FSH (Folltropin) before
the ovum pick-up (OPU) on IVP in lactating and nonlactating Holstein donors. A total of 30 …

Sažetak The aim of the study was to compare the effect of different synchronization protocols
on oocyte retrieval and blastocyst production in vitro. Twelve Simmental heifers were …