In Carthage, Missouri, there’s a Jersey milk cow that’s done more for the Wagyu breed than most folks will ever know. She’s the family milk cow at SDG Ranch, and just this week Michael and Sarah Cochran transferred a Wagyu embryo into her again — the same way they’ve been building their herd since the very beginning.
That cow is the whole story, in a way. When the Cochrans decided to get into Wagyu, they didn’t go out and buy a string of high-dollar donor females. They bought a single Wagyu embryo from Lauren Ruth at Synergy, walked out to the barn, and transferred it into the family milk cow. It took. And they’ve been doing it ever since — with Hereford, Angus, and Longhorn recips in the mix along the way, but always coming back to that same dependable Jersey.
“You work with what you got” is how Sarah puts it, and she knows exactly what’s possible. She’s a reproductive physiologist who specializes in cattle IVF and artificial insemination, with training from the University of Florida and South Dakota State University. But the thing she keeps coming back to isn’t the science — it’s the access.
A Foundation Anybody Can Build On
Here’s what makes SDG Ranch worth paying attention to: the Cochrans believe a healthy cow, a good embryo, and a little luck are enough to get a brand-new rancher started in Wagyu. No herd of registered females required. No six-figure buy-in. Just what’s already standing in the pasture.
And they put their money where their mouth is. The Cochrans will sell a newcomer an embryo and do the transfer work themselves at no charge — purely to help another family get started and add another animal to the American Wagyu herd. In a business that can feel closed off to anyone without deep pockets, that’s a door held wide open.
From Milk Cow to Elite Genetics
Started in 2021, SDG Ranch has covered a lot of ground in a short time. Today they raise registered fullblood black Wagyu and hand-select their sire-and-dam pairings to sharpen specific traits, whether that’s carcass quality, dam strength, or F1 cross performance. Their herd sire, SDG Ranch Precision K3, carries the size and growth of Westholme Hirashigetayasu Z278 from the Kedaka bloodline up top, and the marbling of Endless Sky Wagyu ESR Aoichi H18 underneath. That’s serious genetics for an outfit that started with one milk cow and a plan.
Cattle aren’t the only thing they raise, either. SDG runs purebred Kiko goats bred for easy keeping and worm resistance, and they breed English Cream Golden Retrievers as service and therapy dogs. It’s a full farm, worked mostly as a family team, with Michael running things from home and Sarah homeschooling between chores.
To God Alone Be the Glory
SDG stands for *Soli Deo Gloria* — Latin for “to God alone be the glory.” It’s a fitting name for an operation that seems to measure success less by what it holds onto and more by who it can bring along. The Cochrans married in 2012 and started this ranch nearly a decade later on a simple conviction: that Wagyu ought to be within reach of any family willing to learn it.
That Jersey milk cow is proof they’re onto something. And she’s still at it.