Digesta movement and large intestinal fermentaion in pig

用难消化标记技术测定了2头猪的食糜运动。早餐使用Co-EDTA（液体标记物）和YbC13（固体标记物）。晚餐用Ce-EDTA（液体标记物）和EuC13（固体标记物）。标记物被包含在食物中并被给予动物。所有标记物在给药后4小时到达盲肠。Co、Yb、Ce和Eu的标记物在给药后达到盲肠最高水平所需的时间分别为6、10、8和10h。液体和固体食糜在口腔和盲肠之间的平均停留时间(h)分别为7.7 （Co）、13.4 （Yb）、11.2 （Ce）和13.2 （Eu）。小肠的食糜流动和盲肠的排泄在夜间延迟。白天和夜间饲喂8 h后SCFA浓度均升高。为了确定益生菌乳酸杆菌对猪消化运动的影响，使用了市售的干酪乳杆菌。该产品给猪的剂量显著延迟了夜间盲肠固体食糜的输出。实验表明，白天和夜间食糜运动不相似；它在夜间延迟，盲肠和结肠发酵受到刺激。活的乳酸菌进一步显著延迟了夜间的消化运动，并可能刺激盲肠和结肠发酵。

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.