Example of intensive inbreeding

A good example of the intensive inbreeding practiced by Wim Muller is the breeding of the three base pigeons responsible for the whole Muller strain. In the very spirit of Anker, Wim Muller has fixed the genetical material of the most valuable pigeon he possessed at that moment: the granddaughter of Zilvervosje, the best breeding hen ever.
The crossing material of the Jan Aarden strain used by Wim Muller also carried the genes of Zilvervosje.

Superduivin or Superhen is de hen of the Super Pair, the core of the Muller strain.
Sister Superduivin is dam of Godfather, the coq of the Madonna Pair.
Kruisbek is at the base of the successful Marseille Star line.