Free-range epidemic prevention

For a long time, low-level feeding and extensive feeding management have made native chickens have a characteristic, that is, less diseases and rough feeding tolerance. In addition, most chickens are kept in four gardens (orchard, mulberry garden, tea garden and bamboo garden), which is far from pollution and conducive to disease prevention. However, due to the long feeding cycle and long-term grazing in the wild, the chance of exposure to pathogens increases, and sometimes pesticide poisoning caused by spraying pesticides on crops in the "Four Gardens" can not be ignored. In addition to strengthening daily management, such as strict disinfection and isolated feeding to eliminate some diseases, drug prevention is a good way.

chickenpox

Chickens were inoculated with fowlpox vaccine at the age of 15-35 and 90- 140 respectively. After 4-5 days, the scab on the thorn seedlings showed effectiveness, and the protection rate was generally 100%. Only by improving the feeding environment, strengthening nutrition and sterilizing feeding tools are the most effective methods to prevent parasitic diseases of native chickens.

Highly pathogenic avian influenza (HPAI)

Chickens are 20 days old 120 days old, laying eggs for half a year or entering the period of high influenza incidence. Half a year after the last inoculation, each chicken is injected with 0.5 ml of egg-reducing oil vaccine.

vaccination

Chickens of (1)7- 14 days old and 25-28 days old were given nasal drops and eye drops with clone 30 vaccine. At the same time, add 1 10,000 units of penicillin and streptomycin to every 500 chickens, or use Haitian, Haida, Bluestar and Pusha equally.

(2) At the age of 55-60 days, chickens were injected with Newcastle disease I vaccine and clone I vaccine at the ratio of 1: 1.5.

(3) At the age of125th, chickens were injected with new vaccine and influenza vaccine, each with 0.5 ml.

(4) At the age of 306 days, the cloned strain I muscle was injected repeatedly.

(5) Drinking water containing attenuated vaccine (vaccine II or IV) at the age of 440 days (before slaughter).

Marek's disease

(1) Chickens were injected with Marek's disease vaccine within 24 hours after hatching.

(2) Incubators, eggs and hatcheries are strictly disinfected; Nursery grounds and utensils have been strictly disinfected.

(3) Chickens imported from high-incidence areas should be vaccinated with Marek's disease for the second time.

(4) The breeders within1month should be isolated from each other.

(5) Once the disease occurs, the sick chickens should be eliminated immediately, and the threatened chickens should be disinfected with Anli 2000 to strengthen prevention.

Infectious bursal disease

(1) If breeder chickens have not been vaccinated with bursal disease vaccine before laying eggs or have not been vaccinated again after being vaccinated with oil seedlings for half a year, their offspring will be vaccinated with attenuated vaccine at the age of 5 days; Breeder chickens are inoculated with attenuated vaccine, and 0.2 ml oil seedlings are injected subcutaneously/chicken. 15 days old and 32 days old do not need epidemic prevention.

(2) If breeder chickens are vaccinated again after half a year, their offspring can be infused with attenuated vaccine at the age of 14 days. If breeder chickens are vaccinated with attenuated vaccine and 0.2 ml oil seedlings are injected subcutaneously, local chickens need not be vaccinated at the age of 24 days.

(3) In the outbreak area of bursal disease, chickens should drink water with high yolk immunity at 1 year old, and it is better to be immunized once at 5 years old, 15 years old and 32 years old.

(4) When commercial chickens are 1 day old, 7-day old, 14-day old and 2 1 day old, they can drink water with high egg yolk, so there is no need for epidemic prevention in the future.