Ear-tag for livestock - has U=shaped plate secured by stud with point passing through hole with rupture neck

摘要

The ear tag is used to identify livestock and can be used once only, comprising a male part (3) and a female (1) part. The female uses a hole (2) to form a matrix, the male having a point (4) in hard synthetic material or metal. A neck (5) is provided in the softer material of the male part and behind the point, forming a rupturable section which prevents the demounting and re-use of the tag. The rupturable section may be formed by a narrow circular groove, the angle of the point being less than fifty five degrees.