Abstract: A system for virtual management of livestock includes a server computer, a primary collar, and a plurality of secondary collars. The server computer receives virtual boundary data, as a user input, which establishes a virtual boundary. The primary collar is worn by and associated with a primary livestock animal and communicates with the server computer via a remote wireless gateway. The plurality of secondary collars communicate wirelessly with one another and with the primary collar via an ad hoc wireless mesh network. Each of the secondary collars is worn by and associated with an individual secondary livestock animal of a plurality of secondary livestock animals. The primary collar receives the virtual boundary data from the server computer, transmits it to the plurality of secondary collars via the wireless mesh network, and provides directional stimulation to the primary livestock animal to encourage it to refrain from crossing the virtual boundary.