For identification of experimental animals
Ear punching is commonly used for identification of small laboratory rodents and involves punching a hole in the middle of the ear.
Mouse Ear Punch: Punch of 2mm diameter and 5cm long, suitable for mouse with simple thumb type punching.
Nail Clipper Style Ear Punch: Punch of 2mm diameter with punching through nail clipper type mechanism.
Ear tagging involves using a special applicator to place a metal tag with an identification number in the pinna of a mouse’s ear. Because tags are relatively large and mouse ears develop quickly, ear tagging is suitable only for weanling and older mice.