A system and method for automatically delivering a substance to an animal including a positioning system that positions each animal singularly, a sensor that detects the location of a predetermined targeted area on the animal and an image processor. The system further includes a delivery device having a plurality of delivery outlets for delivering a substance to the targeted area. The sensor, image processor and delivery device are in communication with a computer processor. The sensor activates the image processor which takes at least one image of the animal positioned singularly. The image is communicated to the computer processor and analyzed. The computer processor activates the delivery outlet proximate the predetermined target area on the animal which delivers an effective dosage of substance to the predetermined targeted area.