The invention provides a preparation method of
trichomonas pigeon and
candida albicans bivalent egg
yolk antibody powder and an application thereof. The preparation method comprises the following steps: obtaining
trichomonas pigeon and
candida albicans bacterial liquid; inactivating
trichomonas to obtain an inactivated trichomonas
antigen, and inactivating
candida albicans to obtain an inactivatedcandida albicans
antigen; preparing a bivalent
inactivated vaccine from the two inactivated antigens and a
glucan adjuvant, and immunizing
egg laying hens; collecting immunized eggs, separating egg
yolk, removing fat components in the egg
yolk by using
poloxamer, concentrating filtrate by using a hollow
fiber ultrafiltration membrane to obtain a concentrated
antibody, adding
maltodextrin, and carrying out low-temperature
freeze drying to obtain the trichomonas pigeon and candida albicans bivalent egg yolk
antibody powder. The
titer of the egg yolk antibody
powder is far higher than the binding
titer of any single egg yolk antibody, the egg yolk antibody powder has a remarkable effect of preventing and treating trichomonad and
candida albicans infection, and oral ulcer and craw ulcer caused by infection of homing pigeons, racing pigeons, meat pigeons, pearl trichomonad and candida albicans can be effectively prevented and treated by feeding the egg yolk antibody powder.