Title
Comparison of the invitro adhesion of K88, K99, F41 and P987 positive ***Escherichia coli*** to intestinal villi of 4- to 5-week-old pigsComparison of the invitro adhesion of K88, K99, F41 and P987 positive ***Escherichia coli*** to intestinal villi of 4- to 5-week-old pigs
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences. Veterinary Sciences
Research group
Department of Veterinary Sciences
Veterinary physiology and biochemistry
Publication type
article
Publication
Amsterdam,
Subject
Biology
Veterinary medicine
Source (journal)
Veterinary microbiology. - Amsterdam
Volume/pages
34(1993):1, p. 7-18
ISSN
0378-1135
ISI
A1993KJ95900002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The adhesion of K88ab, K88ac, K88ad, P987, K99, F41 and K99/F41 positive Escherichia coli strains to duodenal, jejunal and ileal villi was studied using an in vitro adhesion assay. The villi were harvested from 4- to 5-week-old pigs. The K88+ strains adhered in large numbers (42 +/- 5 to 81 +/- 4 E. coli/250 mum villous length) to the villi from most pigs and in low to moderate numbers (5 +/- 2 to 24 +/- 7 E. coli/250 mum villous length) or not to villi of some pigs. The K99+ and F41+ strains either adhered in low numbers (1 +/- 1 to 11 +/- 2 E. coli/250 mum villous length) or did not adhere, whereas the P987+ and K99/F41+ strains always adhered in low to moderate numbers (2 +/- 1 to 26 +/- 2 E. coli/250 mum villous length). The number of bacteria adhering to the villi was the highest for the K88ab+ and K88ac+ strains (55 +/- 5 to 81 +/- 4 E. coli/250 mum villous length) and decreased in the following order: K88ad > P987 > K99/F41 > K99 > F41 (= 1 +/- 1 to 4 +/- 1 E. coli/250 mum villous length). There was no difference in the adhesion of the villi of the different small intestinal segments for the P987+ and F41 + strains. The K99+ strains adhered significantly more to the villi of the caudal half of the small intestine, the K99/F41+ strain to jejunal and ileal and the K88+ strains to jejunal villi in comparison to duodenal ones.
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