FIELD: veterinary, immunology.
SUBSTANCE: healthy calves are immunized three time with 10-day interval by hypodermic injection of immune serum from donor animal with hemagglutinin titer to infective rhinotracheitis virus of 1:256; to parainfluenza-3 virus of 1:1280; and to viral diarrhoea virus of 1:1024. After the first injection additionally probiotic preparation lactobifadol in amount of 16x108 microbial bifido- cells and 2x107 lactobacteria for 10 days in three courses.
EFFECT: nocifensor activation; decreased calf morbidity rate.
3 ex, 5 tbl
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Authors
Dates
2007-01-20—Published
2005-07-18—Filed