Prevention and control measures for the epidemic diseases of large-scale green-shell chickens and black chicken farms

1, establish a comprehensive prevention and control point of view. That is to say, from construction site to seedlings to feeding and management, all links should be considered from the perspective of benefiting prevention. This is the general requirement of the epidemic prevention rules and the basic requirement for industrialization and intensification of the poultry industry.

2, disinfection of poultry houses. Thoroughly killing germs and viruses with disinfecting drugs is the only powerful measure to eliminate the accumulated pollution during the previous batch of poultry breeding, and can shorten the idle time of poultry houses, so that the next batch of poultry lives in a clean environment. The specific method is as follows:

(1) Cleaning: After all the poultry have been put out, first disinfect the entire house with a disinfectant solution, and then remove the bird feces, grass mats, spider webs and dust on the roof. For poultry litter attached to flat-surfaced ground, it can be watered and softened in advance and then removed. In order to facilitate the next flush, the interior of the poultry house can be sprayed first to moisten the exterior of the house, the ceiling and various equipment.

(2) Rinse: The purpose of flushing is to remove the remaining organics after cleaning to improve the disinfection effect. Before the washing, the non-waterproof lamp shall be tightly packed with plastic cloth, and then flushed with high-pressure faucets. The dirt on the bottom of the cage and the dirt on the egg tank must be flushed with a brush, leaving no residue.

(3) Drying: After flushing, the ground will still contain many bacteria, and the number of bacteria after drying will be significantly reduced. Spraying the disinfectant must be performed after flushing and adequate drying. The use of a disinfectant in a wet state will reduce its concentration, impairing the penetration of the drug and impairing the sterilization.
(4) Drug fumigation: All the holes, seams, and holes in the homes will be covered with paper, making the entire poultry house airtight. For every cubic meter of space, use 18% of 40% formaldehyde solution and 9 grams of potassium permanganate. After 24 hours of airtight ventilation, open the window for disinfection. Disinfect with sterile water before spraying.

3. Firmly establish a viewpoint of prevention and treatment. The idea of ​​using disease (bacteria) vaccines to prevent and treat diseases is the most important, most effective, and most economical measure to prevent and treat diseases. Most major infectious diseases can be prevented through vaccination. The success of vaccination is directly related to the maternal antibody, inoculation method and time of inoculation. Therefore, different poultry farms have different immunization procedures.

4, drug distribution or ingredients feeding. You should master the drinking water and feed amount of the blended medicine within 2 hours to be more effective. When Beverage Beverage is used, it is necessary to stop the water for 2 hours and ensure that it is finished within a short period of time and that each bird can drink.

5, the use of drugs, pay attention to drug compatibility taboo. The use of a synergistic combination of drugs can increase efficacy, reduce drug use, and reduce costs. The use of drugs with antagonism will reduce the efficacy, affect the therapeutic effect, delay the healing period, and cause losses.

6, the use of drugs, pay attention to the choice of drugs. With antibiotics and sulfa drugs, the first dose should be doubled so that the drug concentration in the body can be rapidly increased to achieve therapeutic effects. When the treatment is generally selected 2-3 different antibacterial spectrum drugs to expand the scope of sterilization; prevention can be used with a drug, and should be stopped at intervals for medication.

7, the use of drugs, pay attention to drug resistance. Do not change drugs frequently. If you use drugs that are still ineffective for 2-3 days, you may consider choosing a new treatment plan. Each antibiotic must not be used for a long time to prevent the emergence of resistant strains.

8, the use of drugs, pay attention to secondary infection. When using antibacterial drugs, antiviral drugs should be added to prevent secondary viral infections. At the beginning of the disease, we must pay attention to isolation of diseased birds and increase the amount of preventive drugs used by healthy poultry.

9, when disinfection, pay attention to induced disease. The diseased poultry house should be sprayed with disinfectant, especially when it is sterilized with poultry, which can easily induce respiratory diseases. Therefore, before the disinfection, poultry should be given erythromycin, doxycycline, and vitamins to prevent respiratory diseases and anti-stress drugs.

10. When treating, you should eliminate unfavorable factors before you can treat it well. The occurrence of poultry disease should not be dealt with solely from the point of medication. At the same time, attention should be paid to eliminating the factors that lead to disease and unfavorable poultry growth and life. If the density is too large, the poultry house is humid, the air is dirty, the temperature is low, or the effect is minimal.

11, poultry disease treatment medication should be caught early, in order to be effective. If there is no food or drink at a later stage, the physical quality will drop significantly. One drug cannot enter the body from the esophagus, and injection medicine may not work well in the body, resulting in poor efficacy. Therefore, daily observation of the flock's intake, drinking water, excrement, and mental status should be observed. If you find an abnormality, treat it immediately.

12. During treatment, management should be strengthened. During the treatment of the disease, it is necessary to strengthen the feeding and management. After the illness, attention must be paid to the care and physical recovery of the flock. Avoid treatment is not complete, care is not in place News entry: Three Gorges purebred black chicken