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Suboptimal conditions of oocyte maturation and embryo culture in vitro reduce their developmental competence as compared to in vivo development. It is well known now that some IVF blastocysts, despite a proper morphology, are not able to hatch and implant after transfer. Therefore, it is suggested that during in vitro culture embryos show an ability to adjust to suboptimal conditions, which is however...
The objective of this study was to compare the effect of different supplements to the basic IVM medium (TCM199) on the efficiency of cattle oocyte maturation and blastocyst production, and the incidence of apoptosis in both oocytes and blastocysts. Two protein supplements (FBS and fafBSA) and a macromolecule (PVP40) were compared in a 3 treatments×9 replicates design. Cumulus–oocyte complexes (COCs)...
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