Agricultural feed mixer with ingredient sensing automatic transmission control

A feed mixer apparatus comprising:

• a mixing chamber for receiving feed material, and having a mixing element situated therein for mixing the feed material;
• a transmission having a plurality of gears and sensors, the transmission connected with the mixing element;
• a control unit having a display and a plurality of control panel inputs, wherein the control unit is in at least indirect communication with the transmission and the sensors, and wherein the control unit is configured to receive a plurality of outputs from one or more of the transmission and sensors, and based at least in part on the plurality of outputs, provides an output command to effectuate a gear change in the transmission, and wherein the control unit includes a processor, a memory, and a control program;
• and
• a scale indicator configured to provide signals representative of a user-selected recipe, a current ingredient within the selected recipe, and a user-selected animal pen for receiving a distribution of feed material.