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Since 1978, the current preferred and most common method to transfer cattle embryos into synchronized recipients is via nonsurgical techniques. The embryo is loaded into a small plastic straw (0.25 mL) fitted into a specialized (Cassou-type) pipette (ie, artificial insemination gun).
1 sty 2020 · Bovine embryo transfer technology involves the selection and management of donor and recipient animals and the collection and transfer of embryo within a narrow window of time following...
3 lis 2020 · Typically, bovine embryos are transferred into recipient females about day 7 after estrus or anticipated ovulation, when the embryo has reached the blastocyst stage of development.
9 mar 2024 · Embryo transfer in cattle involves several key steps: synchronizing the donor and recipient cows’ estrous cycles, collecting embryos from the donor cow post-fertilization, evaluating and storing viable embryos, and finally, implanting the embryos into the synchronized recipient cows.
1 sty 2020 · While the number of in vivo–produced embryos that are collected and transferred worldwide seems to have stabilized in recent years, the transfer of embryos derived and transferred from in vitro production (IVP) continues to grow at an average annual growth rate of 12% (Figure 1 a).
13 cze 2019 · Pregnancy rates following direct transfer of frozen-thawed bovine embryos were affected by the developmental stage of the embryos and the parity of the recipients. The use of ultrasound-guided on-farm ovum pickup is ushering in a new revolution for the commercial application of IVF embryos.
Very briefly, bovine embryo transfer involves the selection, management, and treat- ment of donors and recipients, and the collection and transfer of embryos within a narrow window of time 6–8 days after estrus.
