Mouse Ear Notch ID System
Dillon Corvino
Ear mark positions & values
RIGHT EAR
ones (1–9)
LEFT EAR
tens (10–90)
1
2
4
8
10
20
40
80
Example — ID 37 (right ear: 1+2+4=7 · left ear: 10+20=30)
RIGHT EAR
ones (1–9)
LEFT EAR
tens (10–90)
1
2
4
10
20