Monitoring and Analysis of Serum Antibody Potency of Three Vaccines Against Yak
In order to monitor the immunization effect of inactivated bovine viral/mucosal disease vaccine,in-activated bovine paratyphoid fever vaccine and inactivated multicidal bartonellosis vaccine on yaks,40 healthy yaks were selected in the present research and vaccinated with inactivated multicidal bartonellosis vaccine at a dose of 4 mL/head、inactivated bovine viral/mucosal disease vaccine and inactivated bovine paratyphoid fever vaccine at a dose of 2 mL/head.The serum antibodies of the yaks were detected using enzyme-linked immunosorbent assay(ELISA)by collecting the blood at 30,60,90,120,150,and 180 d after immunization.The results showed that the inactivated viral/mucosal disease vaccine had a better immunoprotective effect and maintained a higher serum antibody potency after 6 months of immunization;the inactivated bovine paratyphoid vaccine and the inactivated Pasteurella multocida vaccine had a lower immunological antibody potency.The monitoring and evaluation of post-immunization antibodies in this research provides data support for future vaccine immunization and control of the three epidemics in yak.