Enteropathogenecity of E-coli from diarrhoeic ruminants in Himachal Pradesh

The study was designed to know the prevalence of K99 and F17 fimbrial antig ens on 95 E. coli strains emanating from healthy and diarrhoeic calves, she ep and goats. The presence of K99 antigen alone was revealed. The presence of K99 in diarroheic animals such as calves was 20, sheep 14.29 and goats 4 0. The presence of F17 fimbrial antigen was recorded as 38.10 healthy calve s, while 17.14, 14.29 and 4.0 in diarrhoeic calves, sheep and goats, respec tively. The enteropathogenecity was conducted in rabbit ligated illial loop assay (RLILA) and mean dilation index was ascertained. The histopathomorph ological alterations comprised haemorrhages and coagulative necrosis in liv er, kidney, small intestine and heart muscles.