Immunization of guinea-pigs and cattle with a reduced dose Clostridium chauvoei vaccine produced in a semi-synthetic medium.

Preparation of concentrated blackleg vaccine

  Blackleg in cattle has been recognized since 1938 in Iran that mostly affects cattle in enzootic farm. Main object of this study was to prepare and formulate a concentrated potent vaccine for immunization of cattle against blackleg in Iran. Experimental concentrated blackleg vaccine was prepared according to the method described by FAO. The medium (Modified medium for production of experiment...

Large scale production of Blackleg vaccine by fermenter and enriched culture medium in Iran

In all biological systems growth is defined as increase of chemical compounds. Bacteria can achieve to balanced growth if they are growing in a medium, which are completely adapted to it. Clostridium chauvoei, (Clostridium feseri) is an anaerobic, spore forming, motile, and polymorph bacteria, which its size varies from 0.5-1 to 3-8 micron and could be observed as individual bacterium, diplo, a...

Immunizalion of Cattle with Clostridium chauvoei Vaccine

Sequencing and comparative analysis of flagellin genes fliA and fliB in bovine Clostridium chauvoei isolates

Background: Clostridium chauvoei is the etiological agent of blackleg as an endogenous infection in cattle.  Flagella have been known to play a critical role in the protective immunity of animals to clostridial infections. C.chauvoei has two copies of fliC gene, namely fliA and fliB. OBJECTIVES: The aim of this study was the determination and nucleotide sequence analysis of both copies of fliC ...

Evaluation the Efficacy of Anthrax Vaccine against Challenge with a Highly Virulent Strain of Bacillus anthracis Isolated from Soil in Sheep, Goats and Guinea Pigs in Iran

  Protection of animals immunized against Bacillus anthracis is usually demonstrated by challenging with an appropriate dose of a strain of Bacillus anthracis that is lethal to unvaccinated animals inoculated at the same time. In this study the protective efficacy in anthrax vaccine (34F2 sterne strain spore) was evaluated in sheep, goats and guinea pigs challenged with subcutaneous inoculation...