Prevention and treatment of Newcastle disease in chickens

Newcastle disease is an infectious disease caused by a virus, which is often called chicken plague, also known as Asian chicken plague. It usually occurs in cold weather in winter or in seasons when the weather is changeable or abrupt. Chicken Newcastle disease is extremely contagious, the mortality rate is also very high, and the loss is very heavy for farmers, so today we will specifically understand chicken Newcastle disease and its prevention and control methods.

1. The harm of Newcastle disease in chickens

Newcastle disease is extremely harmful, infectious to all kinds of chickens, and the speed of infection is very fast, the morbidity and mortality are very high, which has a great impact on poultry breeding. Newcastle disease mainly spreads among chickens, but it also has a certain impact on pigeons, ducks and other poultry as well as special breeding of birds. Although a vaccine has been developed and basically controlled, it is still possible to develop the disease and to develop more dangerous diseases at the same time.

2. The cause of the disease

Chicken Newcastle disease virus is a kind of paramyxoviridae, which is extremely contagious. It can agglutinate the red blood cells of humans, chickens, guinea pigs and mice, and then spread the virus through adsorption, penetration, stripping shell, biosynthesis, assembly and release. It is mainly caused by the feces, corpses, saliva and contaminated feed and water of diseased chickens and infected chickens through the respiratory tract or oral cavity.

3. Symptoms

Chicken Newcastle disease virus it has a certain incubation period, the general incubation period is one week, this week is basically normal. After the outbreak of the virus, it will show difficulty in breathing, coughing and wheezing, and occasionally straighten the head and neck and open the mouth to breathe. At the same time, it will be accompanied by loss of appetite, diarrhea, weight loss, and finally death. And some mouth will flow sour liquid, fever, snoring, neck twisting and claudication and other symptoms, these are the symptoms of Newcastle disease.

4. Prevention and control methods

The prevention and treatment of chicken Newcastle disease needs to follow the process. It is mainly divided into six processes, namely, feeding management, epidemic prevention and control, chicken house disinfection, vaccine injection, isolation treatment, supervision and testing. We can not rely on vaccines alone to prevent and cure, the most important thing is to strengthen feeding management, hygiene, epidemic prevention and disinfection, to improve the immunity of chickens. Immediately after the onset of the disease, quarantine, and vaccination, timely elimination of diseased chickens. Vaccine injection we need to be carried out at different ages, specific vaccine agents can be consulted. For example, attenuated vaccine was used at 7 days old, Ⅰ vaccine was used at 4-26 days old and so on.

5. Prevention and control measures

The prevention and control measures of chicken Newcastle disease are mainly two aspects, namely, strengthening feeding management and scientific vaccine immunization. When we are raising, the breeding ground should be chosen in a more secluded place to reduce stress response. The second is to strengthen nutritional feeding, maintain nutritional balance and improve health. Finally, we should carry out strict disinfection and adopt a standardized feeding and management system to monitor the physical condition of the flock at any time. Vaccine prevention and treatment needs to be carried out in accordance with the prescribed process, regularly test antibodies, understand the immune effect, and control the disease in time.

The above is the editor to introduce to you, the harm of Newcastle disease, the causes of the disease, the symptoms of the disease, prevention and control methods and its prevention and control measures. I hope it can be helpful to everyone, if you like, remember to follow us.