4Harsharnjit S,Gill H S.Probiotics to enhance anti-infective defences in the gastrointestinal tract[J].Best Pract Res Clin Gastroenterol,2003,17(5):755-773.
5Leuschner R G,Bew J,Simpson P J,et al.Enumeration of probiotic pediococci in animal feed:interlaboratory study[J].AOAC Int,2003,86(4):791-801.