FIELD: veterinary biotechnology. SUBSTANCE: vaccine has suspension of strain Sal. enteritidis ВГНКИ 204 and gelatin-sucrose stabilizing agent taken at effective concentration. Attenuated strain Sal. enteritidis DUYRB 204 is prepared by insertion of plasmid in the parent rifampin-resistant strain Sal. enteritidis N 204 following by selection of insertion mutants. EFFECT: use of new vaccine ensures to increase safety of poultry livestock up to 90%. 3 cl, 1 tbl
Authors
Dates
1995-03-20—Published
1992-04-07—Filed