Digesta movement and large intestinal fermentaion in pig

用非消化标记技术测定了两头猪的消化运动。早餐使用Co-EDTA(液体标记物)和YbC13(固体标记物)。晚餐使用Ce-EDTA(液体标记物)和EuC13(固体标记物)。记号笔被包括在食物中，并给动物吃。所有标志物在给药后4h均达盲肠。Co、Yb、Ce和Eu在盲肠中达到最大浓度所需的时间分别为给药后6、10、8和10h。液体和固体消化的平均保留时间(H)分别为7.7(Co)、13.4(Yb)、11.2(Ce)和13.2(Eu)。消化液流经小肠，盲肠排出的时间在夜间延迟。为了确定益生菌乳酸菌对猪肠道运动的影响，选用了市售干酪乳杆菌。该产品对猪夜间盲肠固体消化的产生量有显著的延迟作用。实验表明，猪的肠道运动昼夜不同，夜间延迟，并刺激盲肠和结肠的发酵。活的乳酸菌进一步显着推迟了夜间的消化运动，并可能刺激盲肠和结肠的发酵。

Digesta movement in two pigs was determined by the undigestible marker technique. For the morning meal Co-EDTA (liquid marker) and YbC13 (solid marker) were used. For the evening meal Ce-EDTA (liquid marker) and EuC13 (solid marker) were used. Markers were included into meals and given to the animal. All markers reached cecum 4 h after dose. The times required for the marker substances to reach the maximun level in the cecum were 6, 10, 8 and 10h after dose respectively for Co, Yb, Ce and Eu. Mean retention times (h) between mouth and cecum of the liquid and solid digesta were 7.7 (Co), 13.4 (Yb), 11.2 (Ce) and 13.2 (Eu), respectively. Digesta flow through the small intestine as well as output from cecum delayed during the night. SCFA concentration increased 8 h after feeding both daytime and night.To determine an effect of a probiotic Lactobacillus to the digesta movement in pigs, comercially available L. casei was used.The dose of the product to pigs significantly delayed the output of the solid digesta from cecum during the night.The experiment indicated that digesta movement was not similar between the daytime and the night ; it delayed during the night and cecal and colonic fermentation was stimulated. Live lactic acid bacteria further significantly delayed the digesta movement during the night and may stimulate the cecal and colonic fermentation.