S. S. Dritz, J. Shi, T. L. Kielian, R. D. Goodband, J. L. Nelssen et al., Influence of dietary ?-glucan on growth performance, nonspecific immunity, and resistance to Streptococcus suis infection in weanling pigs, J. Anim. Sci, vol.73, pp.3341-3350, 1995.

A. Hamard, B. Sève, L. Floc'h, and N. , Intestinal development and growth performance of early-weaned piglets fed a low threonine diet, Animal, vol.1, pp.1134-1142, 2007.
URL : https://hal.archives-ouvertes.fr/hal-02658584

M. S. Hedemann, B. B. Jensen, and H. D. Poulsen, Influence of dietary zinc and copper on digestive enzyme activity and intestinal morphology in weaned pigs, J. Anim. Sci, vol.84, pp.3310-3320, 2006.

A. Huguet, G. Savary, E. Bobillier, Y. Lebreton, L. Huërou-luron et al., Effects of level of feed intake on pancreatic exocrine secretions during the early postweaning period in piglets, J. Anim. Sci, vol.84, pp.2965-2972, 2006.
URL : https://hal.archives-ouvertes.fr/hal-02664654

R. Jiang, X. Chang, B. Stoll, M. Z. Fan, J. Arthington et al., Dietary plasma protein reduces small intestinal growth and lamina propria cell density in early weaned pigs, J. Nutr, vol.130, pp.21-26, 2000.

S. R. Konstantinov, C. F. Favier, . Zhu-weiyun, B. A. Williams, J. Kluss et al., Microbial diversity studies of the porcine gastrointestinal ecosystem during weaning transition, Anim. Res, vol.53, pp.317-324, 2004.
URL : https://hal.archives-ouvertes.fr/hal-00889955

S. R. Konstantinov, A. Awati, H. Smidt, B. A. Williams, A. D. Akkermans et al., Specific response of a novel and abundant Lactobacillus amylovorus-like phylotype to dietary prebiotics in the guts of weaning piglets, Appl. Env. Microbiol, vol.70, pp.3821-3830, 2004.

S. R. Konstantinov, E. Poznanski, S. Fuentes, A. D. Akkermans, H. Smidt et al., Lactobacillus sobrius sp. nov., a novel isolate abundant in the intestine of weaning piglets, Int. J. System. Evol. Microbiol, vol.56, pp.29-32, 2006.

S. J. Koopmans, A. C. Guzik, J. Van-der-meulen, R. Dekker, J. Kogut et al., Effects of supplemental L-tryptophan on serotonin, cortisol, intestinal integrity, and behavior in weanling piglets, J. Anim. Sci, vol.84, pp.963-971, 2006.

K. A. Kudsk, Y. Wu, K. Fukatsu, B. L. Zarzaur, C. D. Johnson et al., Glutamine-enriched total parenteral nutrition maintains intestinal interleukin-4 and mucosal immunoglobulin A levels, J. Parenter. Enteral Nutr, vol.24, pp.270-275, 2000.

J. P. Lallès and H. Salmon, Effects of dietary antigens on health, performance and immune system of pigs at weaning, Proc. 6 th Int. Symp. Dig. Physiol. in Pigs, vol.80, pp.295-307, 1994.

J. P. Lallès, G. Boudry, C. Favier, L. Floc'h, N. Luron et al., Gut function and dysfunction in young pigs: physiology, Anim. Res, vol.53, pp.301-316, 2004.

J. P. Lallès, P. Bosi, H. Smidt, and C. R. Stokes, Nutritional management of gut health in pigs around weaning, Proc. Nutr. Soc, vol.66, pp.260-268, 2007.

S. Lange and I. Lönnroth, The antisecretory factor: synthesis, anatomical and cellular distribution, and biological action in experimental and clinical studies, Int. Rev. Cytol, vol.210, pp.39-75, 2001.

L. Floc, &. , N. Melchior, D. Sève, and B. , Dietary tryptophan helps preserving tryptophan homeostasis in pigs suffering from lung inflammation, J. Anim. Sci, vol.86, pp.3473-3479, 2008.

L. Gall, M. Montagne, and L. Meunier-salaün,

M. C. Noblet and J. , Valeurs nutritives des fibres, conséquences sur la santé du porcelet et le bien-être de la truie, Inra Prod. Anim, vol.22, pp.17-24, 2009.

L. Huërou-luron, I. Mroz, Z. Dekker, R. Koopmans, S. J. Zijlstra et al., Effets d'un challenge infectieux, des conditions de logement et d'une supplémentation en acidifiants sur les réponses physiologiques des porcelets au sevrage, Journ. Rech. Porcine Fr, vol.36, pp.133-138, 2004.

L. Huërou-luron, I. Drillet, M. Fauquant, and J. ,

D. Mollé and S. Bouhallab, Effets de différentes fractions colostrales sur les performances de croissance des porcelets au sevrage, Journ. Rech. Porcine Fr, vol.40, pp.221-222, 2008.

Y. Liu, J. Huang, Y. Hou, H. Zhu, S. Zhao et al., Dietary arginine supplementation alleviates intestinal mucosal disruption induced by Escherichia coli lipopolysaccharide in weaned pigs, Br. J. Nutr, vol.100, pp.552-560, 2008.

E. G. Manzanilla, J. F. Perez, M. Martin, C. Kamel, F. Baucells et al., Effect of plant extracts and formic acid on the intestinal equilibrium of early-weaned pigs, J. Anim. Sci, vol.82, pp.3210-3218, 2004.

E. G. Manzanilla, M. Nofrarias, M. Anguita, M. Castillo, J. F. Perez et al., Effects of butyrate, avilamycin, and a plant extract combination on the intestinal equilibrium of early-weaned pigs, J. Anim. Sci, vol.84, pp.2743-2751, 2006.

J. Marion, Y. M. Petersen, V. Romé, F. Thomas, P. T. Sangild et al., Early weaning stimulates intestinal brush border enzyme activities in piglets, mainly at the post-transcriptional level, J. Pediatr. Gastroenterol. Nutr, vol.41, pp.401-410, 2005.

I. Mavromichalis, C. M. Peter, T. M. Parr, D. Ganessunker, and D. H. Baker, Growth-promoting efficacy in young pigs of two sources of zinc oxide having either a high or a low bioavailability of zinc, J. Anim. Sci, vol.78, pp.2896-2902, 2000.

M. Mazzoni, L. Gall, M. De-filippi, S. Minieri, L. Trevisi et al., Supplemental sodium butyrate stimulates different gastric cells in weaned pigs, J. Nutr, vol.138, pp.1426-1431, 2008.
URL : https://hal.archives-ouvertes.fr/hal-02669202

V. J. Mccracken and R. G. Lorenz, The gastrointestinal ecosystem:a precarious alliance among epithelium, immunity and microbiota, Cell. Microbiol, vol.3, pp.1-11, 2001.

L. Montagne, G. Boudry, C. Favier, I. Luron, J. P. Lallès et al., Main intestinal markers associated with the changes in the gut architecture and functions in piglets after weaning, Br. J. Nutr, vol.97, pp.45-57, 2007.

Z. Mroz, Organic acids of various origin and physico-chemical forms as potential alternatives to antibiotic growth promoters for pigs, 2003.

, Proc. 9 th Int, vol.1, pp.267-293, 2003.

H. Namkung, M. Li, J. Gong, H. Yu, M. Cottrill et al., Impact of feeding blends of organic acids and herbal extracts on growth performance, gut microbiota and digestive function in newly weaned pigs. Can, J. Anim Sci, vol.84, pp.697-704, 2004.

T. A. Niewold, The nonantibiotic antiinflammatory effect of antimicrobial growth promoters, the real mode of action? A hypothesis, Poult. Sci, vol.86, pp.605-609, 2007.

A. Owusu-asiedu, C. M. Nyachoti, and R. R. Marquardt, Response of early-weaned pigs to an enterotoxigenic Escherichia coli (K88) challenge when fed diets containing spray-dried porcine plasma or pea protein isolate plus egg yolk antibody, zinc oxide, fumaric acid, or antibiotic, J. Anim. Sci, vol.81, pp.1790-1798, 2003.

K. Partanen, Organic acids-their efficacy and modes of action in pigs. In: Gut environment of pigs, pp.201-217, 2001.

K. M. Pierce, T. Sweeney, P. O. Brophy, J. J. Callan, E. Fitzpatrick et al., The effect of lactose and inulin on intestinal morphology, selected microbial populations and volatile fatty acid concentrations in the gastro-intestinal tract of the weaned pig, Anim. Sci, vol.82, pp.311-318, 2006.

J. R. Pluske, D. J. Hampson, and I. H. Williams, Factors influencing the structure and function of the small intestine en the weaned pig: a review, Livest. Prod. Sci, vol.51, pp.215-236, 1997.

J. R. Pluske, L. Montagne, and F. S. Cavaney,

B. P. Mullan, D. W. Pethick, and D. J. Hampson, Feeding different types of cooked white rice to piglets after weaning influences starch digestion, digesta and fermentation characteristics and the faecal shedding of ?-haemolytic Escherichia coli, Br. J. Nutr, vol.97, pp.298-306, 2007.
URL : https://hal.archives-ouvertes.fr/hal-02659429

M. Roselli, A. Finamore, M. S. Britti, and P. Bosi,

I. P. Oswald and E. Mengheri, Alternatives to in-feed antibiotics in pigs: Evaluation of probiotics, zinc or organic acids as protective agents for the intestinal mucosa. A comparison of in vitro and in vivo results, Anim. Res, vol.54, pp.203-218, 2005.
URL : https://hal.archives-ouvertes.fr/hal-00890042

M. Roselli, A. Finamore, I. Garaguso, M. S. Britti, and E. Mengheri, Zinc oxide protects cultured enterocytes from the damage induced by Escherichia coli, J. Nutr, vol.133, pp.4077-4082, 2003.

B. Schroeder, S. Duncker, S. Barth, R. Bauerfeind, A. D. Gruber et al., Preventive effects of the probiotic Escherichia coli strain Nissle 1917 on acute secretory diarrhea in a pig model of intestinal infection, Dig. Dis. Sci, vol.51, pp.724-731, 2006.

V. Snoeck, N. Huyghebaert, E. Cox, A. Vermeire, J. Saunders et al., Gastrointestinal transit time of nondisintegrating radio-opaque pellets in suckling and recently weaned piglets, J. Control. Release, vol.94, pp.143-153, 2004.

C. M. Stirling, B. Charleston, H. Takamatsu, S. Claypool, W. Lencer et al., Characterization of the porcine neonatal Fc receptor--potential use for trans-epithelial protein delivery, Immunology, vol.114, pp.542-553, 2005.

D. Taras, W. Vahjen, M. Macha, and O. Simon, Performance, diarrhea incidence, and occurrence of Escherichia coli virulence genes during long-term administration of a probiotic Enterococcus faecium strain to sows and piglets, J. Anim. Sci, vol.84, pp.608-617, 2006.

D. Torrallardona, R. Conde, E. Esteve-garcia, J. Brufau, A. J. Van-dijk et al., Use of spray dried animal plasma as an alternative to antimicrobial medication in weanling pigs, Anim. Feed Sci. Technol, vol.99, pp.263-274, 2001.

M. A. Vente-spreeuwenberg, J. M. Verdonk, M. W. Verstegen, and A. C. Beynen, Villus height and gut development in weaned piglets receiving diets containing either glucose, lactose or starch, Br. J. Nutr, vol.90, pp.907-913, 2003.

M. A. Vente-spreeuwenberg, J. M. Verdonk, J. F. Koeninkx, A. C. Beynen, and M. W. Verstegen, Dietary protein hydrolysates vs. intact proteins do not enhance mucosal integrity and growth performance in weaned piglets, Livest. Prod. Sci, vol.85, pp.151-164, 2004.

X. Wang, S. Qiao, Y. Yin, L. Yue, Z. Wang et al., A deficiency or excess of dietary threonine reduces protein synthesis in jejunum and skeletal muscle of young pigs, J. Nutr, vol.137, pp.1442-1446, 2007.

S. S. Yoo, C. J. Field, and M. I. Mcburney, Glutamine supplementation maintains intramuscular glutamine concentrations and normalizes lymphocyte function in infected early weaned pigs, J. Nutr, vol.127, pp.2253-2259, 1997.