The invention provides a six-joint
inactivated vaccine for poultry as well as a preparation method and application of the six-joint
inactivated vaccine, and belongs to the technical field of veterinary vaccines. The six-combined
inactivated vaccine for poultry is prepared from an inactivated
newcastle disease virus antigen concentrated solution, an inactivated
infectious bronchitis virus antigen concentrated solution, an inactivated H3 subtype
avian influenza virus antigen concentrated solution, an inactivated H9 subtype
avian influenza virus antigen concentrated solution, an inactivated I-group 4-type
avian adenovirus solution, an inactivated H3 subtype
avian influenza virus antigen concentrated solution, an inactivated H3 subtype avian
influenza virus antigen concentrated solution, an inactivated H3 subtype avian
influenza virus antigen concentrated solution, an inactivated H3 subtype avian
influenza virus antigen concentrated solution and an inactivated H3 subtype avian influenza
virus antigen concentrated solution. The inactivated avian
infectious laryngotracheitis virus gD
protein liquid is pretreated, then mixed according to a step-by-step mixing method and emulsified, and the chicken
infectious laryngotracheitis virus gD
protein liquid is prepared. According to the vaccine, through the innovative preparation process and technical means, the optimization of the antigen proportion and the mixing sequence and the adjustment of reaction environment parameters, the structural change or
antigenicity reduction caused by the interaction between antigens is effectively avoided, the stable and effective structure of each antigen in the vaccine can be ensured, and finally the immune effect of the vaccine is not influenced.