Abstract
World Academy of Science, Engineering and Technology International Journal of Animal and Veterinary Sciences Vaol-8, No:12, 2014 The Prevalence of Verocytotoxin-Producing Escherichia Coli 0157 (VTEC) in Dairy Cattle in Tripoli Area, Libya Authors : Imad Buishi, Almabrouk Fares, Hallowma Helmi Abstract : Infection with verocytotoxin-producing Escherichia coli 0157 in humans can lead to mild or bloody diarrhea with the hemalytic uremic syndrome (HUS) as & possible complication. Cattle appear to be important reservairs for VTEC 0157. Epidemiologic studies on the prevalence of VTEC 0157 in dairy cattle in Libya have never been conducted. To investigate the prevalence and the risk factors associated with VTEC 0157 on dairy farms in Tripoli region, fecal samples from 200 apparently healthy cows ware collectad once from 15 randomly selected dairy farms in the period July 2010 through September 2010, All fecal samples were examined for the prevalence of VTEC ©157 by conventional plating using Sorbitol-MacConkey agar (SMAC). Isolated of E. coll were subjected to slide agglutination test using E. coli 0157 antiserum. The results pointed out that the prevalence within-herd and among herds were 9% and 60% respectively. The prevalence of VIEC 0157 in fecal samples of dairy cattle was significantly associated with husbandry practices on farm-lovel such as signs of diarrhoea (p=0.02, OR=3.2) and sharing water trough (p= 0.03, OR=3.0), It was concluded that dairy cattle in Tripoli area are important reservoirs of VTEC D157 strains that are potentially pathogenic for humans. When aiming at reducing risks for human by intervention at farm-level, it is of importance to reduce the number of positive animals and farms. For this, more research is needed Lo devise mitigation strategies that will reduce the on-farm contamination of VTEC 0157. Keywords : VTEC 0157, prevalence, dairy cattle, tripoli Conference Title : ICASVM 2014 : International Conference on Animal Science and Veterinary Medicine Conference Location : Bangkok, Thailand Conference Dales : December 18-19, 2014 Open Science Index, Animal and Veterinary Sciences Voli, No: 12, 2014 publications waset orglabstracts 19082 (pd 0