4KELLY D, SMITH J A, MCCRACKEN K J. Digestive development in the early weaned pig 1. Effect of level of food intake on digestive enzyme activity during the post-weaning period [ J]. Br J Nutr, 1992,65 (2):169 -180.
5PLUSKE J R, THOMPSON M J, ATWOOD C S, et al. Maintenance of villous height and crypt depth in piglets by providing continuous nutrition after weaning [ J ]. Br J Nutr, 1996,76 (3) :409 - 422.
6HAMPSON D J. Alterations in piglet small intestinal structure at weaning [J ]. Res Vet Sci, 1986,40( 1 ) :32 -40.
7MILLER B G, JAMES P S, SMITH M W, et al. Effect of weaning on the capacity of pig intestinal villi to digest and absorb nutrients [ J ]. J Agric Sci Camb, 1986,107:579 - 589.
8GU X H, LID F, SHE R P. Effect of weaning on small intestinal structure and function in the piglet [J]. Arch Anita Nutr,2002,56 (4) :275 - 286.
9XU R J, MILIER K J, TUNGTHANATHANICH P, et al. Growth and morphological changes in the stomach of newborn pigs during the first three days after birth [J]. J Dev Physiol, 1992,18(4) :161 -172.
10THOREUX K, BALAS D, BOULEY C, et al. Diet supplemented with yoghurt or milk fermented by Lactobacillus casei DN114001 stimulates growth and brush-border enzyme activities in mouse small intestine [ J ]. Digestion, 1998,59 (4) : 349 -359.