Reference | Schwaiger2010 (10110)

A total of 799 cloacal swabs and 800 eggs were examined from 10 organic and 10 conventional randomly selected Bavarian laying hen farms. Periodical randomized sampling (four times each) was accomplished in quarterly periods from January 2004 to April 2005. Swab suspensions, pooled egg samples and eggshells, respectively, were enriched in buffered peptone water. Percent distribution of susceptible, intermediate and resistant Enterococcus isolates were determined from cloacal swabs of organically and conventionally kept laying hens.

For the cloacal swabs, 10 laying hens were randomly selected and a sterile swab was directly inserted into the cloaca. After that, the swab was immediately preserved in tubes containing 1 ml of Amies transport medium. Eggs were randomly chosen directly from the collecting conveyer and stored in new egg cartons.

AST Method: Broth Microdilution

Reference explicitly reports AST breakpoints: True

Reference reports using a MIC table: True