Prevention and control method of porcine pseudorabies

Abstract

The invention discloses a prevention and control method of porcine pseudorabies. Porcine pseudorabies gene-deleted vaccine immunity is carried out on all pigs in a pig breeding farm, then, purification treatment is carried out, breeding pigs with the positive wild virus infection test result are eliminated, then, remaining breeding pigs are divided into an antibody positive group and an antibody negative group, and then the antibody positive group is divided into a high antibody group and a low antibody group; vaccines are rebred into the antibody negative group and the low antibody group, then, purification treatment is carried out on breeding sows at a time every year, and purification treatment is carried out on breeding boars at a time every 6 months. The method is adopted to comprehensively prevent and control the porcine pseudorabies, the infection positive rate of the porcine pseudorabies is reduced year by year, through implementation of three years to four years, the virus detection result of the breeding boars and the breeding sows shows zero, and the pig farm obtains the obvious economic benefits and the social benefits. The method is simple and easy to implement, animals prone to infection are truly protected, the porcine pseudorabies of the pig farm can be completely and effectively purified and controlled, the PR purification effect is consolidated, and the prevention and control cost is greatly reduced.

Description

technical field [0001] The invention relates to a method for preventing and controlling porcine pseudorabies, and belongs to the technical field of animal disease immunity. Background technique [0002] Pseudorabies virus (Pseudorabies virus, PRV) It is a serious acute infectious disease caused by the acute death of newborn piglets and neurological symptoms in piglets over 4 weeks old. Pregnant sows are characterized by reproductive disorders, abortion, stillbirth and respiratory symptoms. Porcine pseudorabies has been widely prevalent in my country since the early 1990s and the incidence is relatively serious. The existence of the disease has been reported in various regions of the country. Pigs of any age can form a latent infection after being resistant to acute PRV infection. The virus can remain latent in the pig for life. Under certain conditions, the latent virus can be activated, causing recurrent infection and spreading the virus outward. The latent-activation cyc...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the current problem of serious harm caused by porcine pseudorabies to pig herds, the present invention proposes a method for the prevention and control of porcine pseudorabies, mainly aimed at breeding pig farms, using the polymerase chain reaction method to detect porcine pseudorabies wild virus to determine positive pigs For all breeding pigs, carry out wild virus purification, control the source of infection from the source, detect immune antibodies head by head, protect susceptible animals, and strengthen pig farm breeding management and health care at the same time

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