FIELD: veterinary science.
SUBSTANCE: vaccine against porcine salmonellosis contains cell suspension of attenuated vaccine strain Salmonella choleraesuis VGNKI SC 230-DEP in the following ratio of components, vol.-%: suspension of strain Salmonella choleraesuis VGNKI SC 230-DEP with concentration 100-120 billion cells in cm3, 42.0-55.0; sucrose, 5.0-7.5; gelatin, 1.5-2.0, and distilled water, the balance. Morbidity of piglets immunized with vaccine is reduced 2-fold and their safety is by 8.6% higher as compared with the same indices for piglets immunized with the known vaccine from the strain Salmonella choleraesuis VGNKI № 9. Vaccine shows enhanced economy in producing and exhibits stable genetic markers.
EFFECT: improved, enhanced and valuable properties of vaccine.
5 tbl, 8 ex
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Authors
Dates
2005-07-10—Published
2003-06-04—Filed