Management Labels & Industry Approvals
In the Bos Sires catalog, each animal is assigned a designation and may also receive an endorsement to help buyers understand its background, adaptability, and genetic merit. These classifications make it easier for buyers to select cattle that align with their specific grazing systems, management goals, and breeding philosophies.
Endorsement Labels
Bonsma Blueprint
Awarded to cattle bred with Jan Bonsma’s principles of hormonal balance, structure, and efficiency. Bulls are masculine, cows feminine, ensuring fertility. Selection is judged by the Bonsma All Breeds Group administrators.
To join or learn more about the Bonsma All Breeds Group click the link
Zeitsman Approved
The Zietsman Approved stamp is awarded to high-fertility, low-input cattle selected for efficiency and adaptability. Johan Zietsman personally determines which cattle meet his rigorous standards.
Management Labels
Graze Bos
Cattle that excel in ultra high-density grazing, thriving under intense pressure with minimal inputs. Their resilience allows them to outperform in less demanding environments.
Range King
Cattle adapted to sparse, open rangelands, capable of traveling further for forage while maintaining condition. Their efficiency makes them ideal for low-input grazing systems.
The Forager
Cattle with strong grazing instincts, efficiently utilizing forage in varied environments with minimal
supplementation, making them ideal for forage-based operations.
