Porcine parvovirus is a reproductive dysfunction caused by viruses, causing sow reproductive disorders.
I. Epidemiological survey
There is no obvious seasonality in this disease, sows are susceptible to primipara; pigs imported from outside are more sensitive than local pigs, and boars can also be infected.
Second, the clinical symptoms
Infertility or repeated estrus occurs early in the sow's infection. Mummified mummified or stillbirths are produced after pregnancy, and the surviving fetus is deformed or debilitated. Abortion of pregnant sows results in stillbirths, mummified fetuses, malformed fetuses, or piglet weakness, resulting in prolonged delivery.
Third, the diagnosis
According to epidemiology, clinical symptoms can be diagnosed. Diagnosis of laboratory tests such as hemagglutination inhibition test or enzyme labeling technique is required for diagnosis.
Fourth, prevention
1. Adhere to regular disinfection to kill pathogens.
2. Intensify quarantine work, introduce breeding pigs, observe and quarantine in isolation, and after diagnosis is confirmed to be free from disease, rearing can be done normally after immunization.
3. Programmatic immunization, healthy pigs, hypothetical healthy pigs were inoculated with inactivated vaccine 1 month before mating.
V. Treatment
1. Intramuscular injection of astragalus polysaccharide injection twice daily for 3 to 5 days.
2. Prompt delivery of prolenoenol injection for induced pigs to delay delivery, prevent fetal spoilage, and cause endometritis and infertility in the uterus.
3. The use of cardiac drugs with poor cardiac function, the body dehydration to intravenous rehydration.
Sixth, experience
1. According to the survey, the incidence of porcine parvovirus disease has a tendency to increase, which may be related to the lack of immunization or immunization procedures and unscientific introduction. To this end, it is necessary to strengthen the introduction of quarantine and immunization work for the disease and to implement scientific immunization procedures.
2. Immunity to porcine parvovirus must be careful. Improper use can artificially introduce the disease. There is no infection on the farm and it is best not to be immunized. In case of immunization, it is best to use inactivated vaccine.
3. The timely delivery of pigs for delayed delivery. Practice has shown that prolene enol injection is safe and reliable, and is conducive to the discharge of the placenta.
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