First generation (F1) progeny of a cross between female C57BL/6J and male CBA/CaCrl.

NOTE: Strain is available to customers in the United Kingdom and Ireland only.

Coat Color


Ideal For:

Uses include hybrid vigor, as a background for deleterious mutations, to create or enhance expression of polygenic diseases, to determine the mode of inheritance, and to provide physiological buffering (present a broader array of responses to various stresses).

Strain Code:


  • Bred In:
  • UK