Farm Progress is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Red Angus Adds Genomic-Enhanced EPDs

Red Angus Adds Genomic-Enhanced EPDs
Pfizer Animal Genetics and Red Angus Association partner for genomic predictions on 13 traits.

Red Angus breeders can now use genomic-enhanced expected progeny differences (GE-EPDs) powered by the high-density 50K testing platform from Pfizer Animal Genetics.

The Red Angus Association of America is partnering with Pfizer on this project.

"One of our primary goals is to provide reliable, accurate genetic descriptions on our members' cattle to assist in their endeavor of making selection and mating decisions to further increase profitability," says Larry Keenan, Red Angus director of breed improvement.

He adds that DNA technology is proving to be very useful in describing an animal's genetics, especially yearling bulls.

Pfizer Animal Genetics and Red Angus Association partner for genomic predictions on 13 traits.

The new HD 50K test for Red Angus provides genomic predictions for 13 economically important traits, including calving ease, growth and efficiency, maternal performance and carcass yield and quality.

Adding HD 50K information to the RAAA National Cattle Evaluation like this gives Red Angus breeders and their customers access to more dependable predictions of genetic merit for young, unproven Red Angus seedstock, Keenan says. It also enhances the scope of selection for difficult, time-consuming and hard-to-measure traits such as feed efficiency.

While DNA technology is powerful, it's most useful when incorporated into EPD calculations, Keenan says.

"It's critical that this information gets put into a language that's understood by commercial producers," Keenan says. "Our role in the relationship with Pfizer Animal Health is to take the information from the DNA test and incorporate it into our EPD calculations — translating it to a language that people already understand, trust and have been using for decades."

Scott Bormann, business director for Pfizer Animal Genetics, says GE-EPDs powered by HD 50K can help breeders and commercial users of Red Angus genetics more accurately identify the best young sire prospects based on their individual situations.

These GE-EPDs not only help with bull selection but also can help dependability in predicting genetic value of cows and prospective replacement heifers, he says.

Test results will be reported as GE-EPDs, associated accuracies and HD 50K percentile ranks. These percentile ranks are associated with molecular breeding values and benchmarked against nearly 8,000 animals tested with HD 50K in the database at Pfizer Animal Health.

The percentile ranks are reported to the nearest 1% and are interpreted identical to historically reported percent ranks for EPDs. Lower percentile rankings generally indicate more favorable genetic merit for most traits.

The HD 50K panel allows addition of new traits and gives more coverage across the full range of existing traits for current and future predictions, Bormann says. It also gives parentage verification, all from a single sample and for a single price.

Additionally, while the GE-EPDs powered by HD 50K are geared for Red Angus cattle, the predictions were derived and validated using Pfizer Animal Health and RAAA domestic and international, Red and Black Angus genotypes and population resources. Therefore, Bormann says, this test can be used on Angus animals of both colors from a variety of geographic regions.

Breeders interested in gaining GE-EPDs powered by HD 50K can contact their Pfizer Animal Health or RAAA representative, or visit for more information. For more information about genomic testing, visit

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.