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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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Avoid the Headache: Properly Submitting DNA Samples
Breed Improvement Session
Angus Means Business National Convention

DNA sampling
Tonya Amen, AGI
During the second portion of the Breed Improvement session, Dr. Amen answered the question "How can we avoid sample failure when DNA testing animals?" She gave four points:

  1. Have proper collectors on hand. Blood samples are preferred, as the process can be automated. Blood samples can also be archived, whereas tissue samples cannot be. Contact your DNA service provide or see the Angus website. Have samples properly identified. "You cannot invent your own collection system!" said Amen. A business card, airline barf bag, and other home-remedies won't work!
  2. Practice good sampling technique. Make sure you have a nickel sized spot that has soaked completely through the card. Do not send wet samples-mold will grow like crazy! Make sure samples dry overnight in a safe place (not the dash of your truck!).
  3. Package well. Padded envelopes work well.
  4. Consider shipping method. How long will the sample be in transit?


Staff at AGI have a mantra about blood card sampling—Donor Dams Die. Collect samples on your animals, even if you think you will never DNA test that animal. Better to be safe than sorry.
When sampling twins, hair samples are required due to twins sharing blood in the cows uterus.
If blood cards are stored at home, store in a cool dry place and do not store in plastic.

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