A kind of anti-porcine virus disease mixed freeze-dried powder and preparation method thereof
A technology for viral diseases and porcine viral diseases, which is applied in the field of preparation of mixed freeze-dried powder, can solve problems such as inconvenient operation, difficult storage of medicines, and poor effect, and achieve strong pertinence, improve the effect of preventing and controlling porcine viral diseases, The effect of broad application prospects
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Embodiment 1
[0038] The mixed freeze-dried powder of anti-swine viral disease of the present embodiment is the mixed freeze-dried powder of anti-swine fever, comprising the following components in parts by weight: 90 parts of anti-swine fever yolk antibody, 2 parts of anti-swine fever transfer factor, vitamin 1 part of C, 1 part of vitamin E, 2 parts of α-interferon, 1 part of active lactobacillus, 0.02 part of thimerosal, 0.2 part of formaldehyde, 0.05 part of selenium, 2 parts of polyvinylpyrrolidone, and 0.5 part of glycine.
[0039] The preparation method of the mixed freeze-dried powder of anti-swine fever of the present embodiment comprises the following steps:
[0040] 1) Propagate the standard strain of classical swine fever virus, inactivate it to prepare a vaccine, immunize healthy laying hens every 7 days, and immunize three times in total. For the first time, immunize healthy chickens with 1.5ml of inactivated vaccine , the second and third immunizations were doubled, and the a...
Embodiment 2
[0046] The anti-porcine viral disease mixed lyophilized powder of the present embodiment is an anti-porcine pseudorabies mixed lyophilized powder, comprising the following components in parts by weight: 93 parts of anti-porcine pseudorabies egg yolk antibody, anti-porcine pseudorabies transfer factor 1.5 0.5 parts of vitamin C, 0.5 parts of vitamin E, 1.5 parts of α-interferon, 1 part of active lactobacilli, 0.01 parts of thimerosal, 0.3 parts of formaldehyde, 0.1 parts of selenium, 1.5 parts of polyvinylpyrrolidone, and 1 part of glycine.
[0047] The preparation method of the mixed freeze-dried powder of anti-porcine pseudorabies of the present embodiment comprises the following steps:
[0048] 1) Propagate the standard strain of porcine pseudorabies virus, inactivate it to prepare a vaccine, immunize healthy laying hens every 7 days, and immunize three times in total. ml, double the dose for the second and third immunizations, and start to detect the antibody titer after th...
experiment example 1
[0054] In this experimental example, performance testing was performed on the mixed freeze-dried powder obtained in Examples 1-2, and the results are shown in Tables 1 and 2.
[0055] Experimental method for potency detection at room temperature: store the mixed freeze-dried powder preparations obtained in Examples 1-2 in a 37°C incubator for 24 months, at 1 week, 2 weeks, January, February, April, and 8 months respectively After 1 month, 12 months, 16 months, 20 months, and 24 months, the change of yolk antibody titer in the samples taken at each time point was measured by agar diffusion (AGP) method.
[0056] Table 1 embodiment 1~2 gained mixed freeze-dried powder room temperature potency detection experimental result
[0057] group
1 week
Two weeks
January
February
April
August
December
16 months
20 months
24 months
Example 1
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