Basal values of transmural conductivity (<i>G</i>_t) and short-circuit current (<i>I</i>_sc) of isolated jejunal mucosa of broiler chickens and their changes in response to <i>Escherichia coli</i> application.

a,bValues within one row that do not share a common letter are different (P<0.05; Duncan's test). 1Gt or Isc at time zero is the basal value before addition Escherichia coli. 2Data are arithmetic means and pooled standard error of means SEM [n = 30 (number of experiments for each treatment)]. 3Delta-values represent the absolute and relative changes of Gt and Isc from 1 min before application to 60 min after application. E. coli IMT11322 = avain non-pathogenic E. coli; E. coli IMT4529 = avain pathogenic E. Coli.