Showing posts from 2024

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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

Angus TV Hair Shed | WEBINAR

 Jamie Courter and Jared Decker had the opportunity to present a webinar on hair shedding with the American Angus Association. Watch below! Didn't get your question answered? Be sure to check out our presentation at the Beef Improvement Federation Symposium on June 11th, 2024 at 3 pm. 

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

CAFNR faculty find genes mammals use to sense their environment, while creating hair shedding prediction tool for cattle farmers and ranchers

The tool is part of a study published in an Oxford University Press journal and could be used to help cattle farmers improve the health, well-being and productivity of their herds.   A groundbreaking, newly-published study by CAFNR researcher Jared Decker uses genomics and citizen science to help cattle farmers and ranchers across the globe make better breeding selections that will ultimately improve sustainability, animal welfare and profitability of their operations. And, the key to all of this? Hair shedding. “This project has been really exciting to me because it blends both very basic research all the way to very applied research, so it is one of those rare projects that covers that wide spectrum,” said Jared Decker, associate professor of animal sciences and Wurdack Chair of Animal Genomics. According to Decker, some cows shed their winter hair more effectively than others. This means that some lose their heavy winter coats during the spring months before the heat of summer sets

What You Can't See - How Genomics Can Break the Tie

 We have all heard the saying “You can’t judge a book by its cover”, but it is true that the cover is what initially draws a person to pick up the book in the first place. The same is true with selecting and breeding cattle. What the animal looks like matters. However, what the saying really means is it’s what is inside the book, or in this case underneath the animal’s hide, that adds the most value. The importance of phenotypic selection in cattle is non-negotiable. But, once someone has made that initial gate cut, genomics can help in marketing the value of sale bulls and heifers with increased confidence. Cattlemen and women do their best to select elite bulls to mate their cows to. Unfortunately, basic biology reminds us that variability exists even within the best mating plans. But exactly how much variability? Well, while discussed at length in the extension article The Random Shuffle of Genes: Putting the E in EPD , basic math tells us that within a single full sibling matin