How to prevent chicken diseases? A detailed guide to practical preventive measures

I. Strengthen feeding management

Rationally formulate feed and make it varied. Feeding moldy or spoiled feed is strictly prohibited to prevent poisoning and fungal diseases. Feeding must be done at fixed times and in fixed amounts. Lighting in the chicken house should be appropriate, ventilation good, and the house kept dry at all times. The temperature in the chicken house must not change abruptly, especially during the chick stage. Sick, weak and disabled chickens must be strictly separated into groups and raised in isolation.

II. Do a good job of chicken house hygiene

The chicken house and exercise yard must be cleaned every day. Litter should be dried in the sun frequently and changed frequently. The floor must be kept from becoming damp and waterlogged. The chicken house and equipment must be disinfected regularly. This is an important measure for preventing and eliminating infectious diseases. For chemical disinfection, a 0.2%-0.3% peracetic acid solution can be sprayed, or a 2%-5% bleaching powder suspension, 10%-20% quicklime milk, or 10%-20% hot wood ash solution can be sprayed. Chicken houses, incubators and hatching eggs can be fumigated with formalin. For disinfecting instruments and equipment or for staff to wash their hands, a 2%-5% Lysol solution, 0.1% benzalkonium bromide solution, etc. can be used. A 1%-3% sodium hydroxide solution can be placed in disinfection pools. Feeding utensils such as feed troughs and waterers, in addition to being washed daily to keep them clean, should be soaked and disinfected once every 2-3 days with 0.2%-0.3% peracetic acid.

III. Do a good job of regular immunization and vaccination

Different vaccines and bacterial vaccines have different requirements for inoculation methods. Commonly used inoculation methods include: intranasal or eye drop, drinking water, aerosol, wing web stab, intramuscular or subcutaneous injection, etc. Intranasal or eye drop immunization is suitable for Newcastle disease strain II and strain III vaccines, infectious bronchitis and infectious laryngotracheitis attenuated vaccines, etc. Drinking water immunization is suitable for Newcastle disease strain IV vaccine, infectious bursal disease attenuated vaccine, etc. Wing web stab immunization is suitable for fowl pox attenuated vaccine or Newcastle disease strain I vaccine inoculation. Aerosol immunization is suitable for high-titer Newcastle disease strain I, strain II and other vaccines. Subcutaneous injection is suitable for Marek's disease vaccine. Intramuscular injection is suitable for Newcastle disease strain I, strain IV and fowl cholera and other vaccines.

IV. Strengthen quarantine work

1. Quarantine for introduced breeding stock

@#@230@#@ farms should adhere to the policy of self-breeding and self-raising. If breeding stock really must be introduced from other places, hatching eggs should be introduced rather than directly introducing breeding chickens, so as to avoid bringing in pathogens. Newly introduced hatching eggs must be fumigated and disinfected in an isolation quarantine room. The chicks hatched from them may be transferred to the chicken farm for raising only after passing inspection. Generally, during the isolation quarantine period, no vaccines are administered.

2. Quarantine of breeding chicken farms and hatcheries

To prevent diseases such as avian leukosis, salmonellosis and mycoplasmosis that are transmitted vertically through hatching eggs, the original breeding chicken farms and breeding chicken farms must first be purified.

3. Market quarantine

Veterinary health inspection personnel must carry out strict inspections of chickens on the market. Each chicken farm must establish epidemic prevention systems and regularly test the health status of the flock, thereby grasping the epidemic prevention results of the farm.