Color

American blue

Reference information

Name	American blue
Genotype	a/a d/d
Mandatory picture?	No
Frequency (all time)	7.21 % (3,626 rats)
Frequency (in the last 2 years)	5.24 % (94 rats)
Average lifespan (all causes)	19.5 months (♀: 19.3 months – ♂: 19.7 months)

Description

Black + American blue.