Embryo culture can serve as a strong diagnostic tool, yielding useful information regarding the implantation potential of the human embryo. The information thus gained is useful for quality control of the embryology laboratory, success rates of the IVF/intracytoplasmic sperm injection (ICSI) programme, and counselling of the couple following failed cycles. Zygotes can be scored and zygote quali...

Multiple ovulation and embryo transfer (MOET) has the potential to increase the rates of genetic improvement in sheep. However, better realization of this potential requires a higher yield of transferable embryos. Thus we investigated some factors that may contribute to high embryo yield and quality under field conditions, as part of an ongoing MOET program. Comparison of the effects of 2 breed...

sperm chromatin integrity has been being recognized as an important factor in male fertility. during normal fertilization, high quality sperm with intact chromatin are selected through natural selection in journey from vagina to fallopian tube. however, using assisted reproductive techniques, particularly icsi, the natural selection is bypassed. therefore sperm with dna breakage have the opport...

STUDY QUESTION Does the quality of a single transferred embryo have an effect on the pregnancy outcome? SUMMARY ANSWER After adjusting for confounding maternal variables, poor embryo quality was not associated with adverse obstetric or perinatal outcome in this small pilot study. WHAT IS ALREADY KNOWN Embryo quality is a major predictor of the success of in vitro fertilization treatment and...

BACKGROUND Single embryo transfer (particularly of a top quality embryo) is an excellent model to correlate embryo quality in terms of morphological criteria to early pregnancy. We investigated whether this model could provide us with more information on what happens after implantation in the first trimester of pregnancy. METHODS The outcome of 370 consecutive single top quality embryo transf...

This study assessed the feasibility of using LeY glycan secretion level in human embryos as a method of judging embryo quality. Embryo culture media from patients receiving in vitro fertilization-embryo transfer was collected, and quality scores of embryos were recorded. Secretions of LeY in the culture media in different development stages (from 4-cell to 10-cell), embryos in the same developm...

The aim of this study was to analyze the incidence of stage of embryonic development, embryo quality and the time of transfer on pregnancy rate in embryo transfer program timed. We were worked a total of 23Holsteincowsasembryo donors, super-ovulated with gonadotropin of pregnant mare serum (PMSG) (2500 3000UI).69 cows were used as recipients of Holstein dairy heifers with an age of20 months and...