Abstract:
PURPOSE: A pharmaceutical vaccine composition for fowl typhoid and a feed composition for preventing fowl typhoid are provided to induce prepare antibiotics and to effectively prevent or treat fowl typhoid. CONSTITUTION: A pharmaceutical vaccine composition for fowl typhoid contains ppGpp(guanosine 5'-diphosphate 3'-diphosphate)-deletion mutant Salmonella Gallinarum. The strain contains inactivated relA gene, spoT gene encoding ppGpp synthase, or activated relA gene and spoT gene. A feed composition for preventing fowl typhoid contains the ppGpp-deletion mutant Salmonella Gallinarum. The composition is manufactured in the form of a tablet, pill, powder, granule, capsule, suspension, emulsion, or syrup.