A system for identifying a ruminant, which is being milked. The system includes a transmitter attached to a hind leg of the ruminant and the transmitter transmits a predefined signal, which identifies the ruminant to which the transmitter is attached. The system includes at least one teat cup on which is attached an antenna to receive the signal with which to identify the animal. The teat cup is positionable on the ruminant's teat. A method for using the system is taught as is a teat cup having an antenna fixed thereon.
