Marking
Unknown
Reference information
Name | Unknown |
---|---|
Genotype | ?/? |
Mandatory picture? | Yes |
Frequency (all time) | 7.5 % (3,722 rats) |
Frequency (in the last 2 years) | 7.52 % (152 rats) |
Average lifespan (all causes) | 17.5 months (♀: 18.1 months – ♂: 16.9 months) |
Description
Undetermined or invisible marking (dilution, naked).