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Abstract: Classical swine fever can be divided into acute, subacute, chronic, atypical or unknown types. Cerebrospinal fluid is caused by virulent virus: high morbidity and mortality. Atypical classical swine fever is caused by attenuated virus, and its performance is not obvious. Classical swine fever is a serious threat to the development of pig industry.
In recent two years, the occurrence of classical swine fever has a popular trend in the pig industry in our city. Judging from the situation of several pig farms, classical swine fever not only has a high incidence rate, but also has new epidemic characteristics such as recessive infection and mixed infection, which brings great difficulty to prevention and control, and also causes certain economic losses to many pig farms.
Keywords: classical swine fever; Immunization; Prevention and control; diagnose
catalogue
Abstract 4
Keyword 5
I. Diagnostic points 6
1. Incidence characteristics 6
2. Clinical symptoms 6
3. Pathological autopsy changes: 6
4. Laboratory test methods 7
2. Prevention and treatment of classical swine fever: 7
2. 1 Reasonable selection of vaccine for prevention 7
2.2 Appropriate immune dose 7
2.3 Prevention of immunosuppressive disease infection 8
2.4 Market Stimulation 8
2.5 Environmental Health Work 8
2.6 Improve the health and epidemic prevention system 9
2.7 Strengthen the management of feed and excreta 9
2.8 closed management, group feeding 9
2.9 Strict control of entry and exit, timely handling of the epidemic 9
2. 10 Establishment of Immune Monitoring and Quarantine System 9
2. 1 1 Disposal of sick and dead pigs: 9
3. Prevention and control measures of classical swine fever 10
3. 1 Strengthen the diagnosis of classical swine fever and cut off the source of infection: 10
3.2 Improve the epidemic prevention system for piglets and sows: 10
3.3 Increase the immune dose: 10
3.4 Large-scale pig farms should actively promote advanced immunization: 10.
3.5 Standardize operation and pay attention to vaccine preservation: 10.
3.6 Carry out immune monitoring to find and eliminate subclinical infected pigs: 10
Four. Conclusion 1 1
Thank you 12
Reference 13