Generation of identical twin piglets following bisection of embryos at the morula and blastocyst stage
نویسندگان
چکیده
منابع مشابه
Glucose metabolism of human morula and blastocyst-stage embryos and its relationship to viability after transfer.
The pregnancy rate and implantation rate following blastocyst transfer in the human have been reported to be high; however, it has remained necessary to transfer 2-3 blastocysts to achieve these rates. Morphological criteria are currently used to select blastocysts for transfer and have some limited correlation with ongoing viability. Glucose metabolism of 189 human morula to blastocyst stage e...
متن کاملPerinatal Risks Associated with Early Vanishing Twin Syndrome following Transfer of Cleavage- or Blastocyst-Stage Embryos
Objective. To investigate whether the perinatal risks associated with early vanishing twin (VT) syndrome differ between cleavage- or blastocyst-stage embryo transfers (ET) in fresh in vitro fertilization (IVF) cycles. Methods. Retrospective, single-center, cohort study of IVF cycles with fresh cleavage- or blastocyst-stage ETs resulting in a live singleton birth. The incidence of preterm birth ...
متن کاملCryopreservation of biopsied embryos at the blastocyst stage.
BACKGROUND The availability of an efficient cryopreservation program is especially important in the case of embryos that have undergone blastomere biopsy for PGD. Unfortunately, the freezing/thawing of biopsied embryos has given disappointing results when performed at the cleavage stage. In this study, embryos diagnosed as normal after PGD were grown to the blastocyst stage, frozen and thawed f...
متن کاملthe effect of biopsy during precompacted morula stage on post vitrification development of blastocyst derived bovine embryos
improvements on embryo micromanipulation techniques led to the use of embryo biopsy in commercial embryo transfer programs for genetic analysis of preimplantation bovine embryos. the aim of this study was to evaluate the quality of bovine blastocyst derived from embryos biopsied at different precompacted morulae stages by assessment of cryosurvivability of the resulting blastocysts. the in vitr...
متن کاملThe Effect of Biopsy During Precompacted Morula Stage on Post Vitrification Development of Blastocyst Derived Bovine Embryos
Improvements on embryo micromanipulation techniques led to the use of embryo biopsy in commercial embryo transfer programs for genetic analysis of preimplantation bovine embryos. The aim of this study was to evaluate the quality of bovine blastocyst derived from embryos biopsied at different pre-compacted morulae stages by assessment of cryosurvivability of the resulting blastocysts. The in vit...
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ژورنال
عنوان ژورنال: Reproduction
سال: 1994
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.1000163