The big switch – IETS Data shows growing trend for IVP

Each year the IETS Data Retrieval Committee presents their annual report on global bovine embryo transfer (ET) statistics. They recently released the 2016 figures, and the numbers show an interesting trend away from traditional multiple ovulation embryo transfer (MOET) and towards in vitro embryo production (IVP).

Multiple Ovulation and Embryo Transfer – MOET

A picture (or in this case a graph) tells a thousand words, and here we can see the global picture for MOET techniques over the past four years, with a recent drop in the number of embryo flushes (6.87%), transferrable embryos collected (6.74%) and embryos transferred (4.18%) in MOET applications reported in 2016 versus 2015:

Embryo Transfer Statistics

In Vitro Embryo Production – IVP

Meanwhile, figures regarding the collection and transfer of bovine IVP embryos told a different story, with an upswing in embryo production (8.73%) and embryo transfers (11.43%) from 2015 to 2016. The results are even more marked when you consider that Asia did not report any IVP data for 2016. The IVP stats from Asia were also missing in 2014, so we’ve omitted their data from our global trend chart here to give a clearer picture.

In Vitro Production Statistics

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North America saw a particular surge in IVP embryo production, with 48,528 additional embryos produced in 2016 in comparison to 2015.

IVP Continent Statistics

We weren’t the only ones to spot these differences, with the IETS report also noting the increasing popularity of bovine IVP embryos relative to MOET embryos over the past 20 years.

Keeping it cool

The report also highlighted the growing international trade in bovine IVP embryos, an observation that also links to the rising popularity of frozen bovine IVP embryos, as the technology advances and cryo-survival rates improve. The trend can be seen here marked by the falling proportion of IVP embryos being transferred fresh.

In Summary

The collection and transfer of MOET embryos appears to have plateaued, and even begun to decline in popularity in recent years.

The production of bovine embryos via IVP continues to increase year on year, with a particular boost in OPU-IVP embryos produced in North America in 2016 compared to 2015.

The number of frozen embryo transfers conducted with both MOET and IVP embryos is also growing, which can to some extent be linked to the increasing trend and call for embryo exports.

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Are you concerned about how to prepare your practice for IVP? Check out our top tips for getting IVF-ready. And if you’re ready to take the plunge and try our IVF Media suite out for yourself, get in touch and we’ll be happy to provide you with information on our new hands-on embryology training courses, access to our protocols and how-to videos, and all the other resources you need to start your own successful IVP program today.