PROBLEM TO BE SOLVED: To provide an ear tag for animal of which a male ear tag is arranged so as not to drop off from an ear hole bored by itself, thereby, preventing the slip through and drop off after attaching to the animal and preventing penetration through the hole on the animal even rounding or folding the ear tag.SOLUTION: A pair of ear tag for animal ET mainly made of soft resin includes: a male ear tag 1 having an axis 12 being extended from a part of the backside of a tag type display part 11 in which necessary information can be entered, a pointed arrowhead part 13 being disposed at the extended end of the axis, the arrowhead part being inserted in the ear of the animal while boring a hole on the ear, a pin insertion hole 14 for inserting in an animal ear while boring on the ear from the front side of the axis position of the display part； and a female ear tag 2 for locking the arrowhead part which penetrates through the hole of the ear formed by the boring, the display part made of soft resin further including evagination parts 15a and 15b enlarged enough to avoid passing through the hole even if the axis may become easy to bend in the hollow because of the presence of the pin insertion hole.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】雄耳標がそれ自身で穿孔した耳の穴から抜け出ないようにすることにより、動物への耳標装着後の雄耳標すり抜けによる脱落を防止するとともに、丸めたり折りたたんでも動物の耳に穿孔した穴を通らないようにする動物用耳標を提供する。【解決手段】軟質樹脂を主体として形成し必要情報を記載できる大きさの札型の表示部１１の裏側の一部から軸１２を延設しこの軸の延設端に動物の耳に穿孔しながら挿し込む尖頭状の矢尻部１３を設ける一方表示部の軸位置の表側から動物の耳に穿孔しながら挿し込むためのピン挿入孔１４を設けた雄耳標１と、この穿孔によって形成された耳の穴を貫通した矢尻部を係止する雌耳標２とで一対とした動物用耳標ＥＴにおいて、軟質樹脂で形成した表示部であってしかもピン挿入孔の存在により軸が中空で曲がりやすくなっていても穴を通り抜けられないボリュームを付加した膨出部１５ａ，１５ｂを表示部表面に設けた。【選択図】図１
