The present disclosure is generally directed to systems and methods for applying liquid feed additives to a feed composition. In one embodiment, the system has a spray housing defining a spray chamber located adjacent a mix housing carrying a material composition. The mix housing defines a mix chamber, which contains an actuating device, such as an auger, that moves the material stream through the mix chamber. The mix chamber and spray chamber are in fluid communication. A spray nozzle is coupled to the spray housing and in fluid communication with an air source and liquid additive tank. The spray nozzle sprays a fog of air and liquid additive through the spray chamber and into the mix chamber, which gets deposited on the passing feed stream.