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Lactic Acid Bacteria for Mink
Colonization and Persistence of Enterococcus faecium Cernelle 68 in the Digestive Tract of Mink
Mœlkesyrebakterier til mink. Kolonisering og persistem af Enterococcus faecium i tarmkanalen hos mink
Acta Veterinaria Scandinavica volume 33, pages 95–103 (1992)
Abstract
A method was developed to follow a lactic acid bacterial strain, Enterococcus faecium Cernelle 68, with respect to adhesion, multiplication, colonization, and persistence in the digestive tract of mink. Also the spread of the strain in the cage was examined. When adding 5 × 109 c.f.u. of a rifampicin resistant mutant per kg feed, high viable counts were registered throughout the digestive tract, apart from the oesophagus. Counts were increasing in the aboral direction, suggesting some multiplication in the intestine. It was possible to detect the strain in the intestinal tract 4 days after discontinuation of administration. Neither culture nor scanning electron microscopy gave evidence to suggest that E. faecium Cernelle 68 adhered to the mucosa. The spread of the E. faecium strain was observed in the environment. Counts of E. coli, lactobacilli, staphylococci, and Clostridia were low, and none of these bacteria were constant findings.
Sammendrag
En metode blev udviklet til at følge en specifik mælkesyrebakterie med hensyn til adhæsion, opformering, kolonisering og persistens samt indflydelse på den øvrige flora i tarmkanalen hos mink. Også stammens spredning i redemiljøet blev undersøgt. Den anvendte stamme var en rifampicinresistent mutant af Enterococcus faecium tildelt forsøgsmink i maengden 5 × 109 c.f.u. pr. kg foder. Høje kimtal kunne genfindes i hele fordøjelseskanalen undtagen oesophagus, og kimtallene steg i aboral reining. Bakterien kunne detekteres 4 dage efter sidste tildeling. Der var hverken ved dyrkning eller scanning elektron mikroskopi noget, der tydede på, at den tildelte stamme adhærerede til mucosa. Ingen af de bakterier, der blev dyrket for, viste sig at være konstante fund.
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Pedersen, K., Jorgensen, M. Lactic Acid Bacteria for Mink. Acta Vet Scand 33, 95–103 (1992). https://doi.org/10.1186/BF03546940
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DOI: https://doi.org/10.1186/BF03546940