In the periods from July to November 1995 and 1996, fecal samples from Dutch cattle and sheep were collected at the main slaughterhouses of The Netherlands, located at different geographic sites. The samples were examined for the presence of verocytotoxin (VT)-producing Escherichia coli (VTEC) of serogroup 0157. E. coli O157 strains could be isolated from 57 (10.6%) of 540 adult cattle, 2 (0.5%...

In order to evaluate differences in resistance patterns of Escherichia coli isolated from different parts of sheep digestive tract, the intestinal tracts of 24 sheep were sampled at various locations (duodenum, jejunum, caecum, colon and rectum) after slaughter. Samples were cultured on MacConkey agar and obtained colonies were confirmed as E. coli based on the biochemical tests results. Isolat...

OBJECTIVE Hydatid cyst or cystic echincoccosis (CE) is an important medical and veterinary problem in the world, especially in Iran. Domestic intermediate hosts are a major reservoir for the disease in humans. The aim of this study was to determine the prevalence of hydatid cysts in slaughtered animals in Isfahan, central part of Iran. METHODS In this cross-sectional study performed from 10 M...

Cystic echinococcosis (CE) is endemic among the human population of Xiji County, Ningxia Hui Autonomous Region, China, where the prevalence is estimated to be between 2.2% and 3.6%. Government-run sheep abattoirs in Xiji County have closed in recent years and, as a consequence, slaughter is carried out mostly at rural market places. The market place in Xinglong Township, Xiji County, is home to...

In the present study, to contribute to the understanding of the evolutionary history of sheep, the mitochondrial (mt) DNA polymorphisms occurring in modern Turkish native domestic (n = 628), modern wild (Ovis gmelinii anatolica) (n = 30) and ancient domestic sheep from Oylum Höyük in Kilis (n = 33) were examined comparatively with the accumulated data in the literature. The lengths (75 bp/76 bp...

An effective culture system for Ehrlichia (Cowdria) ruminantium comb. nov. was first established in 1985 and many stocks were subsequently isolated and propagated in vitro. A notable exception, however, was the Kümm isolate that resisted all attempts at in vitro culture until the successful experiment described here. In one experiment white blood cells were harvested from heparinized blood deri...

I. S 24 perennial ryegrass was harvested at six stages of its growth from young leafy herbage to mature grass in which the seed had shed. 2. Two sheep were offered Ikg/d of each cut and two other sheep were offered 750 g/d of each cut of grass. 3. The contents of some possible precursors of the urinary aromatic acids excreted by sheep, namely, shikimic acid, quinic acid, chlorogenic acid, total...

Two serological tests for detection of antibodies to Ehrlichia (previously Cowdria) ruminantium, the causative agent of heartwater, were compared by using field sera collected from sheep and cattle as part of serosurveys in Ghana. Sera selected as either negative or positive by a new polyclonal competitive enzyme-linked immunosorbent assay (PC-ELISA) were tested by the indirect MAP1-B ELISA. Cu...

Prions are unprecedented infectious pathogens that cause a group of invariably fatal neurodegenerative disease by an entirely novel mechanism. The conformational change in prion proteins results in a change from a predominantly α-helical protein to a β-sheet form, which causes scrapie in sheep and goat. The present study was carried out to identify polymorphisms of the prion protein gene (PrP) ...

tropical fasciolosis caused by infection with fasciola gigantica is regarded as one of the most important single helminthes infections of ruminants in asia and africa. fasciolosis diagnosis, due to low sensitivity of coprological diagnostic method has been challenging for a long period. to evaluate the usefulness of elisa for diagnosis of anti – fasciola gigantica antibodies in parasitized shee...