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Coliforms and Enterococci Isolated from the Intestinal Tract of Conventional Mice
Gerald W. Tannock
Vol. 5, No. 1 (1979 - 1980), pp. 27-34
Published by: Springer
Stable URL: http://www.jstor.org/stable/4250551
Page Count: 8
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Coliforms and enterococci were isolated from the intestinal tract of infant (12-day-old) and adult (6- to 8-week-old) conventional mice. Eighty coliform isolates and eighty enterococcal strains were grouped according to their ability to ferment or hydrolyze various substrates. Sixty-one of the coliform isolates were identified as Escherichia coli. The remaining 19 strains were similar to E. coli, but did not produce β-galactosidase. The enterococci belonged to two species: Streptococcus faecium and S. faecalis. Four biotypes of S. faecium and two biotypes of S. faecalis were detected. Xylosefermenting enterococci were isolated with a higher frequency from infant mice than from adults.
Microbial Ecology © 1979 Springer