The optimization of reproductive and productive qualities of cattle by native immunostimulants

For the improving of reproductive qualities of cows and productive potential of calves offer we biopreparations Prevention-N-Е and PS-2. Both immunostimulants represent a water suspension which contains polysaccharide complex of saccharomyces cerevisiae immobilized in agar gel with benzimidazole derivative. But Prevention-N-Е is a complex preparation and still contains a microbicidal product of macrolide’s group. The biological preparations of group Prevention have a wide range. The applying of Prevention-N-Е and PS-2 reduce a time of separation of the fetal membranes, index insemination, service - period, warns gynecologic diseases in patrimonial and puerperal periods and raised a fertility in the first estrus. It is established that examinees biological products improved hemopoiesis, so were increase erythrocytes, leukocytes and hemoglobin. Besides cows and calves have changes in the leukogram - eosinophilia, shift the neutrophilic nucleus to the right and lymphocytosis...