In recent years, there have been more and more duck farmers, but few can make money, and it is understood that there are casualties due to the late duck paramyxovirus. This is the main reason, today I will popularize the duck paramyxo virus.
Duck paramyxovirosis, also known as Duck Newcastle disease, is an infectious disease caused by duck paramyxovirus type I that causes gastrointestinal and respiratory symptoms in ducks. The pathogen is duck paramyxovirus, an infectious disease characterized by attacks on the digestive tract and respiratory tract.
Clinical symptoms
Sick ducks have reduced appetite, loose feathers, increased drinking water, neck shrinkage, weakness in their legs, isolation or paralysis. Feathers lack grease and are prone to dirt. White stool begins to drain, the stool turns red in the middle, and green or black in the later stage. Some sick ducks have difficulty breathing, shake their heads, and have mucus accumulation in their mouths. Some sick ducks have neurological symptoms such as turning in circles or leaning back.
Autopsy symptoms
Liver and spleen are found to be enlarged, with white necrotic foci of varying sizes on the surface and parenchyma. Duodenum, jejunum, ileal bleeding, necrosis, bean-sized ulcers in the colon. There is bleeding at the junction of the glandular gastric papilla with the mucous membrane and the muscles and stomach. Ducks have more mucus in the mouth, bleeding in the throat, and sesame-sized grayish-white or pale yellow scabs on the mucous membranes of the esophagus, which are easy to peel off. The liver and spleen are enlarged, and there are white necrotic foci of varying sizes on the surface and parenchyma.
Coronary fat bleeding, degeneration of the myocardium. Duodenum, jejunum, ileal bleeding, necrosis, bean-sized ulcers in the colon.
Duck paramyxovirus treatment
(1) Immediately vaccinate ducks against paramyxovirus, 0.5-2 ml per muscle;
(2) When paramyxovirus disease occurs, it is easy to be complicated by serositis, and the prevention and treatment of serositis should be strengthened; Drug therapy is mainly based on interferons and antiviral drugs.
(3) Thorough disinfection of duck sheds, utensils and venues.
Duck paramyxovirus prevention methods
(1) When the duck is 20 days old, it can be mixed with [sac Wenkang], a bag of mixing 250 pounds, effectively controlling the incidence of paramyxovirus. It is recommended to add "no mold in the world" a bag of mixing materials 1000 pounds, drinking water 2,000 pounds. Effectively control mold growth, but also decompose the body mold caused by the virus disease.