ラット フツウ フン ト ガンスイ フン チュウ ノ ビ セイブツ ソウ

Abstract

3週齢のSD系雄性ラット12匹を食糞行動を許容した対照区と食糞行動阻止区に6匹ずつ配し,4週間の飼育期間中に,対照区からは普通糞を,食糞行動阻止区からは含水糞を採取し,それぞれの糞の微生物数を測定した。普通糞では含水糞に比べStaphylococciとVeillonellaeが多く,StreptococciとBacteroidaceaeが少ないことが明らかとなった。普通糞と含水糞で微生物叢が異なることは,含水糞に含まれるビタミン類の合成や消費に関わるものと考えられた。Hydrous feces were ingested by rats in coprophagous behavior. Twelve healthy male Sprague-Dawley strain rats (3 weeks old) were divided into a control group (coprophagy-allowed) of 6 rats and a coprophagy-prevented group of 6 rats. The usual feces from the control group and the hydrous feces from the coprophagy-prevented group were collected during 4 weeks of the experimental period. The viable number of microorganisms in the feces was estimated. The numbers of Staphylococci and Veillonellae, in the usual feces were higher than those of the hydrous feces. Furthermore, the numbers of Streptococci and Bacteroidaceae in the usual feces were lower than those of the hydrous feces. The differences of microflora between the usual feces and hydrous feces seemed to relate to the synthesis and consumption of vitamins in hydrous feces

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