TY - BOOK AU - Callaway,Todd Riley AU - Ricke,Steven C. TI - Direct-fed microbials and prebiotics for animals: science and mechanisms of action SN - 9781461413103 (alk. paper) U1 - 636.084 PY - 2012/// CY - New York PB - Springer KW - Animal Feed KW - microbiology KW - Probiotics KW - pharmacology KW - Animal Nutritional Physiological Phenomena KW - Gastrointestinal Tract KW - Prebiotics N1 - Includes bibliographical references and index ER -