中文摘要：

将12窝仔猪随机分为4组，即在饲喂与不饲喂开食料2种饲养制度下，分别设饲喂乳酸菌剂组和饲喂脱脂乳的对照组，每组3个重复．仔猪于7日龄开食，21日龄断奶，开食早期饲喂乳酸菌剂或脱脂乳．于仔猪7、14、21、24、35日龄每窝屠宰一头，取胃底、十二指肠、空肠组织进行组织形态学观察．结果表明：乳酸菌促进断奶后仔猪胃底腺盐酸细胞的增加（P〈0．01），开食促进断奶前后胃底腺盐酸细胞的增加（P〉0．05）；乳酸菌和开食可促进断奶前十二指肠肠绒毛高度的维持，前者作用较短暂，后者的作用则更为明显，但两者对空肠肠绒毛元显著影响；添加乳酸菌与开食之间不存在互作效应．

英文摘要：

A total of 12 litters of neonatal piglets were randomly divided into four groups, two groups with creep feed and the other two without as the controls. Under each feed system, one group was supplemented with lactic acid bacteria preparing in skimmed milk, and the other group with skimmed milk. At 7, 14, 21, 24 and 35 days of age, one piglet every litter was slaughtered, and tissues of stomach bottom, duodenal intestine and jejunal intestine were collected for histological analysis, The results showed that lactic acid bacteria could increase the number of oxyntic cells in fundic gland of piglets after weaning （P 〈0,01 ）, while creep feed could increase oxyntic cell number before and after weaning （P 〉 0.05 ）. However, lactic acid bacteria and creep feed did not affect the thickness of fundic gland. Lactic acid bacteria could increase the height of duodenal villi, but had no effect on jejunal villi.