Fundamental reseach of control on the methane fermentation of herbivorous hamsters

以双胃、以苜蓿草粉为食的叙利亚仓鼠作为反刍动物模型。研究了仓鼠消化道细菌菌群对VFAs的吸收作用。事实上，仓鼠从管道壁上立即吸收VFAs，并依赖于盲肠的pH值。草食性仓鼠的粗蛋白质和粗纤维含量均高于对照组。另一方面，仓鼠囊状部位（前胃、腺胃和盲肠）内容物的细菌菌群发生了剧烈变化。在以谷类食物喂养的对照组中，肠道菌群与其他报道相似。在需氧菌、肠球菌和芽孢杆菌中以其数量最多。厌氧菌中依次为乳杆菌、双歧杆菌、胃链球菌和拟杆菌。草食性试验组饲喂苜蓿草粉饲料，肠道菌群较为单一，需氧菌中未检出肠球菌、葡萄球菌、肠杆菌，厌氧菌中未检出胃链球菌和拟杆菌。这些结果不能解释与粗纤维消化有关的问题。

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.