Table 1. Results and genetic analysis of breeding.

Crosses	SR/CR	Total	%
BALB/c (WT)	0	>50	0
C57BL/6 (WT)	0	>50	0
BALB/cSR/CR × BALB/c	24	63	38
BALB/cSR/CR × C57BL/6	7	24	29
(BALB/cSR/CR × C57BL/6)SR/CR × C57BL/6	43	122	35
[(BALB/cSR/CR × C57BL/6)SR/CR × C57BL/6]SR/CR × C57BL/6	38	64	59
BALB/cSR/CR × CAST/EI	13	39	33
Total	125	312	40
Male	54
Female	71