DOMINANT CZ hens are typical layer lines and are based on a common synthetic stock that originates from Rhode Island, Sussex, Plymouth Rock, New Hampshire and Leghorn lines.

The name of every line is defined on a similarity with colour of plumage and egg shell with some kind of native breed.

Actual genetic background of selection programme DOMINANT CZ is created from 8 basical lines:

  • RIR 523 – (Rhode Island Red) dark brown egg shell
  • RIW 524 – (Rhode Island White) brown egg shell
  • BLPR 594 – (Blue Plymouth Rock) brown egg shell
  • BPR 901 – (Barred Plymouth Rock) dark brown egg shell
  • SU 493 – (Sussex) Sussex White with yellow skin and brown egg shell
  • CoL 593 – (Columbian Leghorn) Columbian colour in Leghorn background with white to cream egg shell colour. They are Leghorns with Sussex white colour of plumage and yellow skin.
  • BrL 300 – (Brown Leghorn) Brown – wild colour of plumage in Leghorn background with white to cream egg shell colour.
  • NH 222 – (New Hampshire) brown egg shell
  • BRIR 922 – (Barred Rhode Island Red) dark brown egg shell
  • WL 529 – (White Leghorn) white egg shell colour