Prevention and treatment of pseudorabies in sows?

Porcine pseudorabies.

Inactivated vaccine pregnant sows, 1 booster immunization 1 month before farrowing; Breeding piglets, 3ml per head at weaning, 28-42 days apart, 1 booster immunization, 5ml per head. Thereafter, I will receive a booster immunization every six months.

China implements a policy of voluntary immunization against live pseudorabies vaccine. According to the Ministry of Agriculture.

According to the "Recommended Scheme for Swine Disease Immunization" (trial), commercial pigs will be immunized with 1 live pseudorabies vaccine at the age of 55 days; Breeding pigs are vaccinated twice a year with live pseudorabies vaccine.

Pseudorabies take at least three times a year, and sows only give birth at most a year, so do it every four months to fully achieve the actual required immunity. And the pseudo-crazy vaccine technology is very mature, and there is nothing about universal immunity. To prevent pseudorabies, you can add ring incense to the feed to improve the immunity of pigs.

1. Symptoms of pseudo-mad limb inulnard dog disease.

Once the pig is infected with pseudorabies virus, the ** rate is very low, and the sick pig often dies within a few days, and there will be some obvious neurological symptoms, such as vomiting, trembling, high chirping, limb stroke, in addition to fever, diarrhea, poor mental state, do not like to eat and other symptoms. Sows infected with pseudorabies virus will have symptoms of repeated infertility, miscarriage and stillbirth.

Second, self-breeding and self-raising, all in and all out.

In recent years, farmers have generally understood the importance of self-farrowing, which can largely avoid diseases on the farm. Foreign vehicles and personnel should also be disinfected and biosecurity measures should be taken. Dogs, cats, birds, rats, and other animals are strictly forbidden to enter the farm to eliminate possible vectors, especially rodents.

3. Conduct timely inspections and strengthen monitoring.

When the pig farm introduces foreign pigs, it should do a good job of testing and vaccination, and isolate it for at least half a month before mixed group feeding. In the process of feeding, maintain a more reasonable feeding density, regularly inspect the reproductive performance of the pig herd, and once there is a reproductive problem, it should be eliminated.

Pseudorabies serum for porcine pseudorabies**.

The causative agent of pseudorabies in pigs is caused by the herpesviridae family, genus Varicella virus, porcine herpesvirus type 1.

The main symptoms are as follows:

Neurological symptoms such as vomiting, diarrhea, standing, circling, swimming, and aimless forward and backward are mainly accompanied by respiratory problems such as coughing, and stillbirths or mummified fetuses occur in sows.

The prevention and control of pseudorabies in pigs is as follows:

There is no specific drug for this disease, and in emergency situations, the use of high free serum can reduce mortality. Vaccination is a fundamental measure for the prevention and control of pseudorabies.

At present, conventional attenuated vaccines, inactivated vaccines and gene deletion vaccines (including gene deletion attenuated vaccines and inactivated vaccines) of pseudorabies have been successfully developed at home and abroad, which can effectively reduce or prevent the clinical symptoms of pseudorabies, thereby reducing the economic losses caused by the disease.

The eradication of rodents in pastures is important for the prevention of the disease. At the same time, it is necessary to strictly control the entry of dogs, cats, birds and other poultry into the pig farm, strictly control the flow of personnel, and do a good job of disinfection and serological monitoring, so that the prevention and control of the disease can also play a positive role in promoting.

In addition, the blood of the pig herd is collected for serum neutralization test, and the positive ones are isolated and eliminated later. It is repeated at intervals of 3 to 4 weeks until both tests are negative.

This disease is an acute febrile infectious disease caused by a variety of animals caused by porcine pseudorabies virus, adult pigs are often infected, pregnant sows can often cause abortion and stillbirth after infection, suckling piglets are infected with increased body temperature, dyspnea and neurological symptoms, and the mortality rate can reach 100%.

Symptoms] After the onset of suckling piglets and weaned piglets, the body temperature rises to 41 42, dyspnea, salivation, vomiting, diarrhea, reluctance to eat, depression, trembling, unsteady walking, aimless forward, backward, circle, and finally coma and death.

Prevention] Immunization with pseudorabies attenuated vaccine or inactivated vaccine. Piglets can be injected intramuscularly with 1 head at weaning. Immunize breeding boars and sows with inactivated vaccine in the field that has not developed the disease, and immunize the attenuated vaccine with gene deletion in the field that has become diseased.

There is no effective drug for this disease, and only symptomatic measures can be used. Highly free serum** can be used, 2 3 ml intramuscularly injection per pig, once a day, for 3 days, can reduce mortality.

At present, there is no specific drug for this disease, and the infected pigs can be injected with porcine pseudorabies high immunity serum, which has obvious effects on weaned piglets, and at the same time, the application of astragalus polysaccharide traditional Chinese medicine preparation with **. Emergency immunization is carried out against threatened pigs that do not develop the disease. The disease should be mainly based on prevention, the newly introduced pigs should be strictly quarantined, after the introduction of isolation observation, blood testing, positive pigs should be injected with vaccines, not for breeding.

Breeding pigs should be regularly inactivated vaccine immunization, fattening pigs or weaned pigs should also be immunized with live seedlings or inactivated seedlings at the age of 2-4 months, if only immunized breeding pigs, fattening pigs infected with the virus can be excreted outward, directly threatening the breeding pig herd. In addition, the inorganic pigs are slow to gain weight, the feed remuneration is reduced, and the slaughter is delayed, and the indirect losses are also huge.

Pig farms are subject to regular and strict disinfection measures, preferably with a 2% sodium hydroxide (caustic soda) solution or a phenolic disinfectant.

Strict rodent control measures should be carried out in pig farms to eliminate the risk of rodent poison-borne diseases.

Porcine pseudorabies and porcine parvovirus, porcine blue ear disease, and porcine Japanese encephalitis are the four major diseases of porcine reproductive disorders.

At present, the epidemic prevention measures include pseudorabies gene deletion seedlings to be given to the born piglets.

Upstairs, don't ctrl+v Dabeinong's pseudo-crazy drug instructions? Also, "see Figure 1," see you big-headed ghost.

1. If pigs are found to have this disease in the farm, they should be isolated in time and thoroughly disinfected in the whole farm.

2. The application of "oil emulsion inactivated vaccine missing vaccine" (developed by Huazhong Agricultural Virus Research Laboratory) is intramuscularly injected according to body weight, which has a good preventive effect and can also be used for the disease of pigs.

This disease is the most difficult to treat, first isolated, sterilized and preferably immunized urgently with imported vaccines