| Breeding bulls | Breeder | | Time periode | | Reno | Henz | | 1990 | | Red Gruber | Werchau | | 1990-1993 | | Volvo | Edel | | 1993-1995 | | Fax | HG. Heinz | | 1995-1997 | | Pekur | Henz | | 1997-1999 | | Gust | Own breeding | | 1999-2000 | | Pioneer | Flamme | | 2000-2001 | | Kohler | Own breeding | | 2002-2005 | | Giovanni | Raps | | 2006-2007 | | Glenno | U. Heinz | | 2007-2009 | | Taro | U. Heinz | | 2008-2010 | | Rico | Raps | | 2009-2010 | | Svensson | From Denmark | AA-Status | 2010-2012 | | Rebell | P. Gries | | 2011-2013 | | Gonzo | From Denmark | AA-Status | 2012-2014 | | Simo | Own breeding | AA-Status | 2013-2014 | | Etos | Own breeding (black with red factor) | AA-Status | 2015-2018 | | Luxor | Sippel | AA-Status | 2016-2017 | | Claudius | From Czech Republik | AA-Status | 2017-2019 | | Orzo | C. Knacker | AA-Status | 2018-2019 | | Arkanje | Own breeding | AA-Status | 2019-2021 | | Ertel | Own breeding | AA-Status | 2020-2021 | | Denver | Albrecht GbR | AA-Status | up to 2020 | | Calif | H. Keunecke | AA-Status | up to 2021 | | Hop | From Czech Republik | AA-Status | up to 2022 | The herd bulls used in breeding have been checked and are free of the Double Muscling-gene 
Hop
Calif
Denver
Ertel
Ertel
 Arkanji 
Orzo
Claudius
 '
Etos
Simo
Gonzo
Svenson
Taro
Glenno |
