Preparation method of anti prglet bacterial epidemic disease compound egg antibody medicinal preparation
A yolk antibody, bacterial technology, applied in the direction of antiviral agents, antibodies, etc., to achieve the effect of no side effects, quick effect, and low cost
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[0009] Embodiments of the invention are provided below:
[0010] Raise clean-grade laying hens, and immunize E. coli K for the first time 88 、K 99 , 987P polyvalent genetically engineered vaccine and a self-made Salmonella vaccine. The second immunization was carried out at an interval of 10 days, and the immunization dose was 2 doses. The third immunization was carried out 10 days after immunization, and the immunization dose was 4 heads. 10 days after the end of the third immunization, after the titer of egg yolk antibody was determined (the plate agglutination test titer reached 1:40 or more), the immunized eggs were collected, and the egg yolk was aseptically obtained, diluted with 0.01M sterile phosphate buffer, 0.5% Hydroxypropyl methylcellulose phthalate is treated, the suction filtrate is spray-dried, and the powder is packaged and preserved. The yield of IgY is more than 90%.
[0011] For the diarrhea caused by the disease in piglets, the product of the present i...
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