Survival of bovine embryos transferred to progesterone-treated asynchronous recipients

Sire and Genotype Effects on Survival of Transferred Ovine Embryos

Two flocks of ewes were used as sources of embryos for embryo transfer programs: a Merino flock comprising 3 lines differentially selected on weaning weight and a Coopworth flock consisting of three lines differentially selected for backfat thickness. Effects of embryo genotype, year of transfer, sire and number of embryos transferred on embryo survival were examined. No significant line or sir...

Chemokine scavenger D6 is expressed by trophoblasts and aids the survival of mouse embryos transferred into allogeneic recipients.

Proinflammatory CC chemokines are thought to drive recruitment of maternal leukocytes into gestational tissues and regulate extravillous trophoblast migration. The atypical chemokine receptor D6 binds many of these chemokines and is highly expressed by the human placenta. D6 is thought to act as a chemokine scavenger because, when ectopically expressed in cell lines in vitro, it efficiently int...

Management of recipients for an embryo transfer program in dromedary camels (Camelus dromedarius)

Embryo transfer can be used to improve the reproductive efficiency of camelids. Methods for the collection and transfer of Day 7 dromedary camel embryos are well established and the selection of good quality and well synchronised recipients has been crucial to the success of these studies. Previous results showed that the best pregnancy rates were achieved when embryos were transferred into rec...

Developmental Potential of Nuclear-transferred Embryos Using a Bovine Mammary Epithelial Cell Line (bmec)

Guidelines on number of embryos transferred.

Based on American Society for Reproductive Medicine (ASRM) and Society for Assisted Reproductive Technology data available in 2007, ASRM's guidelines for the number of embryos to be transferred in in vitro fertilization cycles have been further refined in continuing efforts to reduce the number of higher-order multiple pregnancies. This version replaces the document of the same name that was pu...