Portable electromechanical devices for use in mare confinement and protection against unwanted escape and/or accidental release by sensing that the mare is out of range from the base unit; portable electromechanical devices and computer hardware for monitoring, transmitting and analyzing the movement of a mare; portable electromechanical devices for animal locating and tracking; portable electromechanical devices programmed to use cellular communications for monitoring a mare's travel, effort...