Stefan Kallas

October 2024

Management

Unique Overview: The Most Popular Red Factor Sires World-Wide

An indisputable fact: red factor bulls have played a decisive role in the evolution of Red Holsteins. The pedigree of an undeniably elite bull like Rubels-Red (the sire of, among...

February 2023

Sires Report

BullTalk - Febuary 2023

He has a remarkably high conformation index (146) in the DNA tested top of Germany’s Red Holstein list: Feit-Red-P, a son of Freestyle-Red (<Gywer-RC) out of Solitair daughter HWH Ella...

March 2022

Sires Report

BullTalk - March 2022

One of the remarkable millionaires in the world is Mainstream Manifold, a bull that no one initially expected would become a millionaire. However, he actually developed into one of the...

January 2022

Sires Report

BullTalk - January 2022

‘During the past few years I have witnessed the Holstein breed becoming whiter. It is increasingly difficult to find a good bull that is 75% or more black. I manage...