Fundamental reseach of control on the methane fermentation of herbivorous hamsters

以双胃、以紫花苜蓿粉为主食的叙利亚仓鼠作为反刍动物的模型。研究了金黄地鼠消化管内细菌菌群产生的VFAS的吸收能力。事实上，仓鼠是从管壁立即吸收VFas的，并且依赖于盲肠的pH值。与对照组相比，食草性仓鼠的粗蛋白和粗纤维含量增加，而囊状部(前胃、腺胃和盲肠)的细菌菌群发生了剧烈的变化。在用谷物饮食喂养的对照组中，肠道菌群与其他报告相似。需氧菌中以链球菌为主，其次为肠球菌和芽孢杆菌。厌氧菌中依次为乳杆菌、双歧杆菌、消化链球菌和类杆菌，而饲喂紫花苜蓿粉的草食试验组为单纯肠道菌群，需氧菌中肠球菌、葡萄球菌、肠杆菌，厌氧菌中几乎未检出消化链球菌和类杆菌。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.