RVS7.jpg

In-Vitro Fertilization

What is ivf?

IVF is the process of harvesting unfertilized oocytes directly from the ovaries of a donor cow or heifer. These recovered oocytes are then fertilized with semen in a petri dish one day after aspiration and develop in an incubator to become embryos 7 days after fertilization. 

 

Oocytes are first collected from the ovaries by ultrasound-guided follicular aspiration. The oocytes are then matured for 24 hours and then fertilized in a petri dish. After fertilzation the embryos are incubated for 7 days during which embryonic development takes place. After the 7 days the resulting viable embryos are then transferred into recipients or frozen.

*Our IVF lab is now in house

Image by ThisisEngineering RAEng
_edited_edited.jpg

IVF Process

Select
donor

repro icons-01.png

Donor on
protocol

repro icons-07.png

oocytes collected

repro icons-05.png
repro icons-05.png
repro icons-05.png

oocytes fertilized

repro icons-02.png

Implant

repro icons-06.png
repro icons-01.png

Select your donor female

Donor DFR and super stimulation

Oocytes are aspirated from the donors ovaries

Oocytes are fertilized in a petri-dish and incubated for 7 days to become an embryo

Viable embryos are either freshly implanted into a recipient female or frozen

RVs582.jpg

Why ivf?

There are several reasons which make IVF advantageous compared to conventional flushing including:

  • Potential to obtain embryos from donors that do not respond to conventional flushing.

  • Collection from donors can occur every two weeks.

  • Pregnant donors can be collected from up to 90-150 days pregnant.

  • Can collect heifers before or after breeding which allows breeders to accelerate genetic improvement.

  • Can use only one straw of semen on multiple donors.