Effects of immune synergist of Chinese medicinal herbs on the efficacy of vaccination against classic swine fever
Keywords:
Immune synergist, Chinese medicinal herbs, classic swine fever vaccineAbstract
Two-month-old piglets were fed with 1, 1.5 and 2% immune synergist of Chinese medicinal herbs
together with vaccination against classic swine fever. Serum IgG and IgM levels increased more than
the control group on day 30 (P<0.05). B and T lymphocyte proliferation in piglets fed with 1.5 and 2%
herbal immune synergist markedly increased on day 30 as compared to the control group (P<0.05).
Improvement was also observed in T lymphocyte CD3+, CD4+, CD8+ and CD3+/CD8+ levels. Meanwhile,
there were significant differences in SOD activities and rate of neutrophil phagocytosis between
synergist groups and the control group. These results suggest that herbal immune synergist of Chinese
traditional herbs prescription enhances the protective effect of classic swine fever vaccine.