A device and method detects the orientation of a copulating livestock to indicate when the copulating livestock is mounted over a recipient livestock. A mounting base attaches the device over the dorsal spine and in the middle line of the back of the copulating livestock. The copulating livestock orients its dorsal spinal cord at about 45° incline while copulating with the recipient livestock. A tilt sensor detects the angle of inclination in relation to gravity or a predetermined reference angle. The copulation angle is generally greater than 45°. A counting apparatus registers the count every time the copulation angle is detected. A transmitter sends the count data to a remote data storage for analysis of copulating patterns. A solar panel provides renewable energy to recharge a battery. A control portion controls the device with a power switch and a reset switch. A camera and light provide more efficient analysis.
