A brief introduction to the principles of chicken virus disease prevention and control

1. For infectious bursa, duck viral hepatitis, gosling plague and other viral diseases, convalescent serum or high-immunity yolk antibody can be used for treatment.

2, the main use of specific vaccines to prevent the corresponding viral diseases. (Prevention, Emergency Immunization. Live Vaccines, Dead Vaccines)

3. Use some antiviral drugs to interfere with the replication of the virus, and use antibacterial drugs to prevent secondary infection, and carry out symptomatic treatment at the same time. Relieve the discomfort caused by animal diseases and restore their spirit and appetite. Immune enhancers can improve the body’s immunity and enhance its recovery ability.

Recommendations for the prevention and control of major viral diseases of poultry

1 General principles of poultry immunization‘

1.1 According to different types and breeds of livestock and poultry, different age, different seasons and local epidemic situation, formulate reasonable immunization procedures;

1.2 According to the local circulating strains, select the corresponding serotype vaccine strains for immunization:

1.3 Chicken farms with multiple days of age and multiple batches should take Newcastle disease and avian influenza as the immunization center;

1.4 According to the actual local situation, for multiple diseases, it is necessary to carry out multiple booster immunizations, and bacterial diseases need to be immunized at least twice to be effective:

1.5. Vaccines must be safe, effective, and sufficient, and be transported in frozen chains, diluted in batches, and used up as soon as possible.

1.6. To prevent vaccines from contaminating exogenous viruses, all live vaccines must be produced using SPF embryonated eggs.

1.7 Respond as much as possible during immunization. Vaccine combination can improve the immune effect.

2 Immune prevention and control measures for major domestic rot virus diseases

2.1 Marek’s disease

2.1.1 Chickens with a rearing period of more than 70 days must be vaccinated with CVI988 liquid nitrogen vaccine, and fast-type Sanhuang chickens marketed at 50-70 days of age must be vaccinated with Marek’s vaccine.

2.1.2 Immunize as soon as possible to avoid early infection. The hatchery should be kept away from the chicken house.