VACCINE COMPOSITION AGAINST REPRODUCTIVE RESPIRATORY SYNDROME IN PIGS AND METHOD OF ITS PREPARING, METHOD OF IMMUNIZATION OF PIGS

摘要

veterinary science. SUBSTANCE: invention presents a virulent vaccine against reproductive and respiratory syndrome in pigs which immunizes pigs effectively from this disease and in combination with method of multiplication of viral pathogen in vitro and method of attenuation of virus for vaccine preparation making. Use of vaccine ensures to avoid large loss in pig breeding herds and effect on their reproduction. EFFECT: enhanced effectiveness of composition, improved method of preparing. 14 cl, 1 dwg, 1 tbl