Like most do, tag different color & different ear - RED tag heifers in left ear - YELLOW tag males in right ear - use international letter (N for 2025) My farm colors are red & yellow!
Cow families are extremely important to me (purebred herd). The cow pictured is Miss Lass - she was 12 in this picture. She was a #3 - I have half my herd are #3's. All offspring for generations - she was born 25 years ago.
I have gotten creative with my letters since after a couple of years, I had more #3's calving.
Example: 3K (born 2022) would have K3N this year. Letters in front can tell me the dam, and letter at end tells me year born - but 3 tells me the cow family.
My first year calving was letter E - I have used letter "E" 3 different years - been doing this a while like several others on this board.
I have a few #9's - that goes back to the first year we ever calved - commercial cows bred to Fullblood Simmental - numbered in order of birth.
And the international year letter does not use "I, O, Q & V"