4Westrom.B.R,B.G.Ohlsson,J.Svendsen,et al.Intestinal transmission of macromolecules in the neonatal pig:enhancing elect of colostrum,proteins and proteinase inhibitors[J].BiolNeonate,1985.47:359-366.
5Wu G.Y,D.A.Knable.Free and protein-bound amino acids in sow's elolostrums and milk[J].J.Nutri.,1994,124:2437-2444.
6Williams N.H,T.S.Stately,D.R.Zimmerman.Impact of immune system activation and dietary amino acid regimen on nitrogen retention in pigs[J].J.Anim.Sci.,1993,71(Suppl.1):171.
7Rothkoter,H.J.,H.Uibrich,R.Pabst.The postnatal development of gut lamina proprialymphocytes:nu tuber,proliferation,and T and B cell subsets in conventional and germ-free pigs[J].Pediatr.Res.,1991(29):237-242.
8Schmueker D L.Intestinal mucosal[J].Experimental Ger.,2002,37(2-3):197-203.
9Eekmam L.hi.F.Kagnoff,J.Fierer.Intestinal epithelial cells as watchdogs for the natural immune system[J].Trends of Micro.,1995,30):118-120.
10Berg K.D.Bacterial translocation from the gastrointestinal tract[J].Trends of Micro.,1995,3(4):149-154.
