Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader. This number can be used to track inventory goods.

Since RFID tags can be attached to physical money, clothing, and possessions, or implanted in animals and people, the possibility of reading personally-linked information without consent has raised serious privacy concerns. These concerns resulted in standard specifications development addressing privacy and security issues.

Automatic identification and weighing systems for animals make it possible to give the breeder, with effective frequency, essential information on the growth rate of each individual in the herd.
The system enables accurate, quick and convenient weighing for the operator, with the help of the small permanent staff.
Weighing is carried out with minimal disturbance to the animal, so that it can return to a growth routine in a short time.
The system shows the breeder the growth graph of the individual, while standing on the scale, and allows the breeder to make an optimal decision on the continuation of breeding.