Oldtimer said:
Probably because even if they are not branded they have to be inspected to be moved across county lines or whenever ownership is changed....Very few in the state do not brand- last year less than 1% of the cattle I looked at were unbranded....
In most brand states the issue is the brand inspection and the resultant filling out of the "brand papers." The brand papers constitute the title transfer of the cattle and as such are a legal document and usable in tracking ownership transfers. In most brand states movement of cattle from one county to another also requires a "brand inspection" which can include noting which cattle have no brands, and also results in a legal document filed with the state recording the movement.
In New Mexico a "slick" belongs to the state. Not so in other brand states.