#$%^&*AU2014100342A420140508.pdf#####ABSTRACT The present invention provides a method for delivering a probiotic organism to an animal in need thereof, the method comprising the steps of (i) administering the probiotic organism orally to the animal, and (ii) administering an effervescent agent orally to the animal to cause the generation of an effervescence product within the alimentary tract of the animal, wherein the probiotic organism and effervescence product co-locate at a site in the alimentary tract of the animal such that viability and/or a physiologic effect of the probiotic is improved relative to a method whereby there is no co-location of an effervescence product and the probiotic organism. Also provided are dosage units and beverages containing a combination of a probiotic organism with an effervescent agent.317 ISI FIG. 1