Chickenpox is a contagious disease caused by fowlpox virus, which occurs frequently in summer and autumn. Mainly through skin lesions, mosquito bites are the main transmission factors. Crowding, poor ventilation, excessive ammonia, darkness, and moisture can promote the occurrence and spread of the disease. After the onset, it will not only cause certain deaths, stimulate other diseases, but also affect the growth of chickens, especially broilers will also affect the sale.
The incidence of fowlpox increased last fall. According to the analysis, there are mainly the following reasons:
1. The effective vaccination is still onset. The rain in summer and autumn of last year was more than in previous years, resulting in a large number of mosquitoes breeding. Autumn is the breeding season of mosquitoes and will desperately bite chickens. Therefore, despite the fact that vaccination has been carried out and is strictly in accordance with the norms, due to the large number of mosquitoes Repeated bite can still cause the disease.
2. A significant proportion of diseased chickens have failed due to improper vaccination methods. Because fowlpox vaccination is troublesome, many farmers are using vaccines to be injected in line I, or using needles to lick a vaccine to stab a few chickens, and it is to pierce the skin of the wings of the wings.
3. There are also some farmers who are holding luck. They think that there is little relationship between prevention and prevention. They did not happen before they were prevented. They simply do not inoculate.
In order to prevent the occurrence of fowlpox, comprehensive preventive measures should be taken:
1. First of all, we must do a good job of anti-mosquito measures and pay attention to the cleanliness of chicken houses and the environment. Since mosquitoes are the major mediators of the disease, all sources of mosquitoes and mosquitoes around the house should be inspected to remove these pools; after the beginning of autumn, the house can be nailed with screens and screen doors to prevent mosquitoes from entering, and mosquitoes can be used during the day. The medicine kills mosquitoes in the house and in the surrounding environment. Because the fowlpox virus is mainly found in lesions and exfoliated ecdysis, and the virus is very resistant to the environment, and can live in the environment for several months, so pay attention to the sanitation and environmental sanitation.
2. Proper vaccination. Under normal circumstances, about 20-day-old chicks are bred with a 200-fold diluted vaccine, 20-day-old chicks are stabbed with a 100-fold diluted vaccine, and two-month-old chicks are bred twice. When the first immunization was performed at 10 to 20 days of age, secondary immunization was performed before the start of production. In order to effectively prevent the occurrence of fowlpox, immunization must be done before the onset of the season according to local conditions. Moreover, chicks that begin to be bred during the onset season should pay attention to the fact that the vaccine dose should be large, and vaccination should be stricter. After the fowlpox vaccine is immunized, it must be carefully examined, inoculated for 3 to 4 days, and redness and scarring of the stabbing site occur. After 2 to 3 weeks, the hemorrhoidal mass can fall off. If no scab is found, it must be re-inoculated. In addition, chicken pox vaccine can only be effective for skin stabbing, poor intramuscular injection, drinking water is invalid. Since the dose is not well known in the stabbing, when there are many chickens, you can dilute a bottle as required to see how many chickens you can inoculate, and then adjust according to the situation. The puncture site should also be accurate. Generally, a special stabbing needle or large needle is used to puncture one, and it is best to pierce between the two layers of skin and push 0.3-0.5 cm inward. This will make the effect better.
3. Take measures to prevent chicken body surface trauma. Repair cages in a timely manner to prevent sharp objects such as bamboo thorns and iron wires from stabbing the skin of chickens. Infected chickens with traumatic injuries should be immediately wiped with 5% iodine or gentian violet.
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