Showing posts from April, 2024

Featured Post

Dr. Jamie Courter is your Mizzou Beef Genetics Extension Specialist

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

Genetic Mutations: What, How and When

       For those who have been scrolling through social media and various agriculture-based news outlets in the past 12 to 18 months, it may seem as though there has been quite a few “new” genetic mutations or defects that have been identified. For most producers this is something they have dealt with before. But for others this may be the first time they are being faced with what seems like a “sky is falling” predicament. Regardless of which group you belong to, understanding what genetic mutations are, how they happen, and what to do when they are identified may prove helpful for the future.      To put this into perspective, cattle have 30 pairs of chromosomes. They inherit one of each pair from their sire and the other from their dam. A typical cattle genome consists of 2.7 billion nucleotides (A, T, G, C), or pieces of DNA, each occurring again in a pair. When they come together to form a fertilized egg, or future fetus, that is 5.4 billion nucleotides that are replicated each tim