The invention relates to an animal identification system comprising an animal identification device and a sampling member. The animal identification device comprises a male part comprising a shank (12) extending from a support(11) and ending in a locking head (122) intended to be inserted into a female part so as to fix said identification device to an animal, said shank having passing through it a longitudinal canal that allows the passage of said animal tissue sampling member. The shank (12) comprises stiffening means comprising at least one abutment element (13) protruding into the canal, located between the middle of the shank and the distal end of the head (124), said at least one abutment element defining a bearing zone against which at least one bearing element of the sampling member can bear while animal tissue is being sampled. The sampling member comprises at least one bearing element that complements said at least one abutment element of said male part.
