Marking

Essex

Reference information

Name	Essex
Genotype	H^ro/H
Mandatory picture?	Yes
Frequency (all time)	0.12 % (58 rats)
Frequency (in the last 2 years)	0 % (no rat)
Average lifespan (all causes)	22.8 months (♀: 23.7 months – ♂: 21.9 months)

Description

N/A.