Fuller R, Barrow P A, Brooker B E
Appl Environ Microbiol. 1978 Mar;35(3):582-91. doi: 10.1128/aem.35.3.582-591.1978.
Light and electron microscopy showed lactobacilli and, to a lesser degree, streptococci to be closely associated with the squamous area of the pig stomach known as the pars esophagea. Several different types of extracellular layers were seen on bacteria attached to the epithelial surface. The total number of bacteria per square centimeter did not change with age up to 10 days, and there was no effect of weaning at 2 days. Lactobacillus fermentum, L. salivarius, and Streptococcus salivarius were isolated more frequently from sucking pigs than from those that were early weaned, whereas the reverse was true of L. acidophilus and S. bovis. All isolates recovered from washed macerated pars esophagea adhered to pig esophageal epithelial cells when tested in vitro.
光学显微镜和电子显微镜检查显示，乳酸杆菌以及较少程度的链球菌与猪胃的鳞状区域（即食管部）密切相关。在附着于上皮表面的细菌上可见几种不同类型的细胞外层。每平方厘米细菌总数在10日龄前不随年龄变化，2日龄断奶也无影响。与早期断奶仔猪相比，发酵乳杆菌、唾液乳杆菌和唾液链球菌在吮乳仔猪中分离得更频繁，而嗜酸乳杆菌和牛链球菌则相反。从冲洗过的食管部浸软组织中分离出的所有菌株在体外测试时均能粘附于猪食管上皮细胞。
