الفهرس | Only 14 pages are availabe for public view |
Abstract Pasteurella haemolytica is the aetiological pathogen of Pneumonic pasteurellosis (a fibrinous, necrotic pneumonia and shipping fever in cattle, sheep and other ruminants) exerting considerable world wide economic impact bovine and ovine industries. So this study was planned as an attempt to throw spot lights upon the prevalence of P. haemolytica in Menoufia Governorate, studying their culture characteristic biochemical ,serological typing and the susceptibly of P. haemolytica isolates to various antimicrobial agents and preparation of a suitable vaccine, evaluation of the humeral immune response by indirect haemagglutination technique. For attending these goals 450 samples were collected from sheep a total of 200 nasopharyngeal swabs ,(100 from apparently healthy and 100 from pneumonic sheep) and a total of 250 lung samples (100 from apparently healthy and 150 from pneumonic lung). P. haemolytica was isolated from nasal swabs in the percentage of 4% in healthy animals while in diseased one 32% with a total incidence of 18%. P. haemolytica was not isolated from healthy lungs while in diseased one 30.67% with a total incidence of 14.4%. The biochemical activities of P. haemolytica isolates in this study roved that P. haemolytica cause -haemolysis in blood agar, grow ,well onto MacConkey’s media with pin colored colonies. |