Abstract: In a tag for identifying and marking animals, the tag associates a receiver button (1) by irreversible fitting of a finger (2). The button (1) includes a head (13) wherein is provided a cavity (8) for receiving a punch (3) of the finger (2). The head (13) is secured to a shell (5) retaining the punch (3) which is provided with an opening (6) for introducing the punch (3) inside the button (1). The axial wall (7) of the retaining shell (5) delimiting the opening (6) is radially deformable. A chamber (11) is arranged between the head (13) and the axial wall (7) for receiving the latter (7) deformed under the effect of the punch (3) passing through the opening (6).

Abstract: The invention relates to an electronic button tag for tagging and identifying cattle and other animals, of the type which is intended to be placed on one of the ears of the animal. The inventive button tag includes a transponder which is enclosed in a shell. The shell is made from two half-shells, namely a lower half-shell and an upper half-shell, which are assembled together at a median plane. The transponder is fixed in place, without compression. between the two half-shells using a glue; and the two half-shells are assembled by a laser weld.

Abstract: The invention concerns an ear tag for identifying and marking animals, said tag associating a receiver button (1) by irreversible fitting of a finger (2). Said button (1) comprises a head (13) wherein is provided a cavity (8) for receiving a punch (3) of the finger (2). The head (13) is secured to a shell (5) retaining the punch (3) which is provided with an opening (6) for introducing the punch (3) inside the button (1). The axial wall (7) of the retaining shell (5) delimiting said opening (6) is radially deformable. A chamber (11) is arranged between the head (13) and said axial wall (7) for receiving the latter (7) deformed under the effect of the punch (3) passing through said opening (6).

Abstract: The invention relates to an electronic button tag for tagging and identifying cattle and other animals, of the type which is intended to be placed on one of the ears of the animal. The inventive button tag includes a transponder which is enclosed in a shell. The shell is made from two half-shells, namely a lower half-shell and an upper half-shell, which are assembled together at a median plane. The transponder is fixed in place, without compression, between the two half-shells using a glue; and the two half-shells are assembled by a laser weld.