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Abstract 1. In the present study, a total of 76 soil samples and 191 faecal sa~ples Were collected from Sheep farms in differentprovinces in Egypt and examined for the presence of £1. chauvoei by different methods. It was found that fluorescent antibody technique was a superior method for detection, while the animal inoculation method is the most reliable for isolation. c. Eleven strains of Cl. chauvoei were isolated from soil amples (14.5 percent) and sixtY-five strains from faecal samples (34 percent). The highest percentage of soil contamination was in Sakha and that of faecal contamination Was in EI-Kassasin.J. Clinical and post-mortem findings of sheep experimentally infected with different strains of £1. chauvoeiwere investigated. All animals showed similar clinical pictures and post-mortem lesions. |