Fundamental reseach of control on the methane fermentation of herbivorous hamsters

以双胃叙利亚仓鼠为反刍动物模型，以苜蓿草粉为饲料。研究了金黄地鼠消化道内细菌植物群产生的VFA的吸收情况，结果表明，金黄地鼠消化道内VFA的吸收是直接从管壁吸收的，并依赖于盲肠内的pH值。食草仓鼠的前胃、腺胃和盲肠内容物中的细菌植物群发生了剧烈的变化。在喂食谷物饮食的对照组中，肠道植物群与其他报告相似。好氧菌、肠球菌和芽孢杆菌的数量以上级菌株最多。厌氧菌群中乳酸杆菌、双歧杆菌、消化链霉菌和类杆菌属的数量依次上升，而苜蓿草饲组为单纯肠道植物群，需氧菌群中肠球菌属、葡萄球菌属、肠杆菌属的数量较少，厌氧菌群中消化链霉菌和类杆菌属的数量较少。这些结果不能解释与粗纤维消化的关系。

As a models of ruminants, syrian hamsters which posses of double stomach and live on alfalfa meal diet, were used. It was investigated absorbancy of VFAs produced by bacterial flora in hamster's digestion tracts.In facts, hamsters were absorbed VFAs from the duct-wall immediately and depend on pH at their cecum. Herbivorous hamsters were more crude protein as well as crude fiber than control groups.On the other hand, it was happened drastic change to bacterial flora in the sacciform part (forestomach, glandular stomach and cecum) contents of hamsters. In control groups fed on cereal diet, intestinal flora was similar to other reports. It was most superior streptococcus in the aerobes, Enterococcus and Bacillus in order to number. It was advanced in turn Lactobacillus, Bifidobacterium, Peptostreptococcus and Bacteroides in the anaerobes.However experimental herbivorous group fed on alfalfa meal diet was simple intestinal flora, Enterococcus, Staphylococcus, Enterobacteriacae in aerobes, Peptostreptococcus and Bacteroides in anerobes were hardly detected. These results could not explain in relation to digestion of crude fiber.