Biochemical serological and immunological properties of Pasteurella multocida strains isolated from natural out breaks of Haemorrhagic septicaemia

Butt, I.A.; Tasneem, K.; Raza, A.; Gill, Z.J.

Biochemical serological and immunological properties of Pasteurella multocida strains isolated from natural out breaks of Haemorrhagic septicaemia

2003

Butt, I.A. | Tasneem, K. | Raza, A. | Gill, Z.J. (Veterinary Research Inst., Lahore (Pakistan))

In this study twenty four isolates of Pasteurella multocida were collected from field out breaks of Haemorrhagic septicaemia (H.S) in cattle and buffalo from various regions of the country from 1991-2001. The isolates were subjected to detailed cultural, biochemical and pathogenicity test in albino mice. The stereotyping was done by indirect haemagglutination test for determination of their capsular antigen. Serologically all the isolates were classified on the basis of their capsular antigen as Carter Type B. All the twenty four isolates produced oxidase, catalase and indole and reduced nitrate. They did not produce urease. All the isolates fermented fructose, glucose, sucrose and sorbitol and mannitol with the production of acid whereas dulcitol, lactose, silicon were found negative. Variable results were found among isolates on the fermentation of arabinose and maltose. It was concluded that all the isolates were serologically and immunologically homologous to H.S. vaccine strain produced in the institute.

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