J/K Cattle Ranch, Inc

J/K Cattle Ranch, Inc raises wagyu cattle in Scio, OR, in Linn County and the Willamette Valley near Salem. Owned by Mark Koos since its founding, the family-run farm blends time-honored practices with research-based nutrition planning. The ranch has focused on wagyu breeding for over a decade and holds membership in national registry programs, with routine health screenings to maintain genetic soundness. Animals graze on rotating pasture and follow a balanced feed regimen, while Mark Koos stresses low-stress handling and close welfare monitoring.

The herd’s lineage includes imports chosen for consistent marbling and gentle temperament. Calves receive early gentle handling to foster calm dispositions, and barns are designed to support natural behaviors. The operation also emphasizes sustainable land stewardship through soil conservation and water management practices. Customers often note the steady herd quality and the ranch’s attention to detail in farm management.

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