Preventive measures of Chicken Blight

I. Strengthening feeding management

Rationally allocate feed, diversify feed, and prohibit feeding moldy feed to prevent poisoning and fungal diseases. Feeding should be regular and quantitative. The light inside the chicken house should be appropriate, the ventilation should be good, and it should always be dry. Chicken house temperature can not suddenly change, especially in the young period should pay attention to. Sick, weak and disabled chickens should be strictly grouped and raised in isolation.

Second, do a good job of chicken house hygiene

Chicken houses and sports grounds should be cleaned every day, grass mats should be dried frequently and changed frequently, and the ground should be prevented from moisture and ponding. Chicken houses and utensils should be disinfected regularly, which is an important measure to prevent and eliminate infectious diseases. 0.2%~0.3% peracetic acid solution can be sprayed for drug disinfection, or 2%~5% bleaching powder suspension, 10%~20% quicklime emulsion and 10%~20% plant ash hot solution can be sprayed. Chicken houses, incubators and eggs can be fumigated with formalin. Disinfection of instruments and appliances or washing hands of staff can be carried out with 2%~5% Lysol solution, 0.1% benzalkonium chloride solution, etc., and 1%~3% sodium hydroxide solution can be put in the disinfection tank. Feeding trough, drinking water container and other feeding utensils, in addition to washing and keeping clean every day, every 2~3 days with 0.2%~0.3% peracetic acid immersion disinfection once.

III. Do a good job of immunization regularly

Different vaccines and vaccines have different requirements for vaccination methods. The commonly used vaccination methods are: nasal drops or eye drops, drinking water, aerosol, thorn seeds, muscle or subcutaneous injection, etc. Nasal drops or eye drops are suitable for Newcastle disease II, III vaccine, infectious bronchitis and infectious laryngotracheitis attenuated vaccine. Drinking water immunity is applicable to chicken Newcastle disease IV vaccine, bursal disease attenuated vaccine, etc. Pricking vaccination is applicable to the inoculation of attenuated vaccine of chicken pox or Newcastle disease vaccine. Aerosol immunization is suitable for high-titer Newcastle disease vaccine, strain II and other vaccines. Subcutaneous injection is suitable for Marek vaccine. Intramuscular injection is suitable for Newcastle disease strain IV and avian cholera vaccine.

IV. Strengthening quarantine work

1. introduction quarantine

@#@230@#@Farm should adhere to the policy of self-breeding and self-cultivation. If it is really necessary to introduce species from other places, it should introduce breeding eggs instead of breeding chickens directly to avoid introducing pathogens. The newly introduced eggs must be fumigated in the quarantine room, and the hatched chicks can be transferred to the chicken farm after passing the inspection. During general quarantine, vaccination is not allowed.

2. Quarantine of breeding farms and hatcheries

To prevent chicken leukaemia, salmonella and mycoplasmosis, which are transmitted vertically by breeding eggs, it is necessary to purify the original chicken farms and breeding farms.

3. market quarantine

Veterinary health inspectors shall carry out strict inspection on chickens listed on the market, and each chicken farm shall establish epidemic prevention system to regularly detect the health status of chickens, so as to master the epidemic prevention effect of this farm.