Purpose:To analyze the diversity of lactobacilli in different part of SD rat's digestive tract
Method:feed three normal SD rats of6-week-old for four weeks, then sample the mucus or ccontent from the feed, stomach, the proximal small intestine, the distal small intestine and large intestine respectively, extracting DNA of bacterium by the way of PCR-RFLP to analyze the diversity of lactobacilli in different part of SD rat.
Results:
(1)After the PCR amplification of DNA from the normal feed and f...