Abstract:To compare the effects of classical swine fever E2 genetically engineered subunit vaccine and live swine fever vaccine on the immune effect and production performance of fattening pigs, so as to provide reference for large-scale pig farms when selecting swine fever vaccine. In this experiment, a batch of healthy weaned piglets were selected from a generation farm in Hanzhong and divided into three groups, group A was immune to swine fever E2 genetically engineered subunit vaccine (referred to as E2 subunit vaccine), group B was immune to live swine fever vaccine (spleen leaching source), and group C was the control group without swine fever vaccine immunization. After 60 days of immunization, 10, 15 and 12 blood samples were randomly selected from each group, and the swine fever antibody level was detected with the swine fever virus antibody detection kits. The results showed that the immune effect of the two swine fever vaccines on fattening pigs was highly significant (P<0.01), and the E2 subunit vaccine could significantly improve the antibody blocking rate and reduce the dispersion of fattening pigs compared with live swine fever vaccine, and contribute to the healthy growth of fattening pigs.
