Sexing and IVF Technologies

Embryo transfer programs are developing, reflecting both the emerging biotechnologies
and the demands of breeders for genetic growth and economical application. Wisely
applying biotechnological advances on the farm is our ongoing commitment to our clients.

Sexing Embryo Technologies

Genetic improvement is a goal on every dairy or ranch. More efficient cows that produce more milk and meat from the same inputs provides more profit. The greatest impact on genetic improvement has been from artificial insemination and culling management, followed by successful embryo transfer programs. Incorporating embryo sexing into an embryo transfer program can accelerate genetic gains if the right mating decisions are made.

Most dairy farms consider embryo sexing as a way to reduce the number of bulls from their ET programs, and to make more efficient use of their recipient animals. The goal is to maximize the number of female calves from the top cows using the minimum number of recipients. Transferring only female embryos into recipients can increase the total number of female calves produced each year from a farm.

For example, in a group of 30 cows, a normal year would produce 15 females (50%). If these same 30 cows receive female embryos, assuming a 67% pregnancy rate, 20 will produce female calves (30 x 0.67). If the remaining 10 recipients are mated normally they would be expected to produce 5 female calves (50%). The total calf production from these 30 cows would be 25 female and 5 male calves. This female calf crop will allow a farm to grow from within, or to be more selective in choosing replacement heifers, thus increasing the potential rate of genetic gain.

In addition to embryo sexing, we also offer embryo splitting services, allowing producers to potentially obtain two pregnancies from a single embryo. This can help maximize the number of pregnancies from a single, highly valuable animal.

The Technology

After the Embryos are Sexed - Transfer or Freeze?

The Economics of Embryo Sexing

 

IVF Technologies

The Abbotsford Veterinary Clinic is one of only two facilities in Canada with an in vitro fertilization laboratory certified for international export of embryos.

Ovum pick-up and in vitro fertilization (OPU and IVF) are used primarily on infertile, pregnant, very young or very old donors. They are not recommended for donors with fertility problems having a genetic basis, but can be a very effective means of circumventing infertility that results from injury, disease or old age. In addition, the ability to obtain offspring from pregnant donors (40 100 days pregnant) and heifers as early as eight or nine months old can be very valuable to producers.

Donors can be aspirated as frequently as every two weeks, making it possible to obtain many calves from a particular donor in a short period of time from a selection of different sires.

Certain risks are involved with OPU such as ovarian adhesions and infertility particularly among very young donors, as well as the slight risk of abortion in pregnant donors. Anyone interested in OPU and IVF needs to be aware of these risks and work with our team to apply this technology appropriately.

The Technology

The Economics of IVF

About Us

The Process

Embryos

Sexing and IVF Technologies

Resources