Koester Red Angus is rooted in heritage and stewardship while envisioning tomorrow Raising both Registered Anugus seedstock and commercial cattle. Our Sale Bulls, are Registered with the Red Angus Association of America, and come into the lot in late August where we develop them as long yearlings for the sale in March. Our Herd Sires are fully tested on our ranch for their functionality in multiple settings, and on some we offer frozen semen.