Marking

Unknown

Reference information

Name Unknown
Genotype ?/?
Mandatory picture? Yes
Frequency (all time) 7.48 % (3,729 rats)
Frequency (in the last 2 years) 7.28 % (146 rats)
Average lifespan (all causes) 17.5 months (♀: 18 months – ♂: 17 months)

Description

Undetermined or invisible marking (dilution, naked).