Duck source Newcastle disease is an acute viral infectious disease susceptible to all day-old ducks. The disease is caused by duck paramyxovirus of the family Paramyxoviridae, with an incidence of 40% to 100% and a mortality rate of 30% to 100%. The minimum age of onset is 3 days of age, and the incidence and mortality rate decrease with the increase of day-old age, but the morbidity and mortality rate of ducks within 2 weeks of age can be as high as 100%. The disease has been an important infectious disease in the past 10 years, and ducks raised in the same flock as sick ducks can also be infected and die. It has caused great economic losses and seriously affected the development of the duck industry.
Dalong Independent Jian (5 antibodies) is specifically targeted at the new epidemic paraviscous, influenza, flavivirus, adenovirus, killing five birds with one stone.
The diseased ducks are manifested by mental depression, loss of appetite, increased water intake, difficulty breathing, tears seen in some ducks, and multiple obvious bran-like ulcers in the intestine after dissection. In addition, the mucous membrane at the larynx is hyperemic and bleeding.
Adult ducks have a low case fatality rate after infection with Newcastle disease virus, but duck populations are infected with medium-onset Newcastle disease virus, with pathological changes typical of multiple bran-like ulcers in the intestine. The main cause of the disease in duck flocks is that there is no epidemic prevention. The management of the feeding environment should be strengthened, and the transmission route should be cut off as much as possible, such as frequent ventilation, frequent dung cleaning, and frequent disinfection, and the selection of efficient and non-irritating disinfectant for duck disinfection. For sick and dead ducks, vaccine bottles, etc., timely incineration or deep burial treatment to prevent circulating infection. Try to choose high-quality feed so that the ducks reach or approach the standard body weight as much as possible before production, laying a solid foundation for maintaining good antibody levels.
