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Dr. Jamie Courter is your Mizzou Beef Genetics Extension Specialist

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By Jared E. Decker Many of you have probably noticed that things have been a lot less active on the A Steak in Genomics™   blog, but you probably haven't known why. In January 2021, I was named the Wurdack Chair in Animal Genomics at Mizzou, and I now focus on research, with a little bit of teaching. I no longer have an extension appointment. But, with exciting news, the blog is about to become a lot more active! Jamie Courter began as the new MU Extension state beef genetics specialist in the Division of Animal Sciences on September 1, 2023. I have known Jamie for several years, meeting her at BIF when she was a Masters student. I have been impressed by Jamie in my interactions with her since that time.  Dr. Courter and I have been working closely together the last 6 weeks, and I am excited to work together to serve the beef industry for years to come! Jamie holds a bachelor’s degree in animal science from North Carolina State University and earned a master's degree in animal...
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BIF Genetic Prediction: Genetic Evaluation at Angus Genetics, Inc.

Steve Miller
Angus Genetics Inc.

Details of genetic evaluation are published in their Sire Evaluation Report. angus.org/nce The first four papers of the report contains the details of the evaluation. Miller states that it actually functions as a nice animal breeding textbook.

Angus Genetics, Inc. does evaluations for 6 clients, ranging from weekly to annual evaluations. The weekly evaluation of Angus is a bit like Groundhog Day, same thing week after week.

The Angus Association uses an unweighted single-step approach, and the development of this method is the result of lots of research that has been peer-reviewed and
published.

When they switched to single-step they asked the question if the new evaluation was actually better. They compared to the independent evaluation done by USDA-MARC. The new evaluation performed better.

Because the single-step model allowed them to fit more traits in the same model, they improved the carcass trait model. By adding in weaning weight, they were able to produce a less biased, better model.

American Angus just added in 20,000 heifer pregnancy records from Canada. In 2019, they will transition foot structure EPD from a research EPD to a published EPD.

Future traits include PAP, tenderness, hair shedding, immunity, and others.

Angus is currently working through a rebuild of their selection indexes. They had over 3,000 respondents to their survey. Cow traits still dominate traits that Angus breeders are concerned about. They hope to launch these new indexes in 2019.

AGI is working on identifying the best variants to put on chips (DNA tests). They are constantly striving for better through an iterative process.

Location: Kansas City, MO, USA

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