Prevention and treatment of infectious bursal disease in cultured peacocks

Pathogen: the disease virus is infectious bursal virus, that is, infectious bursitis, also known as Campbell's disease, bursitis on the cavity. Pathogen is an acute infectious disease caused by double-stranded RNA virovirus and double-stranded RNA virus belonging to infectious bursal virus. The resistance of the virus was so strong that it could not be inactivated after 90 minutes at 60 ℃. It could survive for 3 years at-20 ℃ and could not be killed until it was kept in a strong alkali environment with pH 12 for more than 30 ℃ for 1 hour. It has tolerance under ultraviolet rays and sunlight, and the feces, feed and drinking water removed from the cage of diseased birds remain contagious after 52 days. The first disinfectant is formaldehyde, followed by human medical chloramine, etc., in addition to Dushujing, bromogeramine and so on also have a certain effect.

Pathological examination showed that the peacock was obviously dehydrated, its legs were dry and its skin was dry. Chest muscle, leg muscle appear flake, strip large area hemorrhage, glandular stomach and muscle stomach junction has bleeding point, sometimes glandular stomach nipple also bleeds. The most important is the appearance of Fabricius cyst, wall hypertrophy, obvious wrinkles, severe bleeding in the shape of purple grapes. The kidney is enlarged and a light yellow "spotted kidney" appears, which in turn causes death. Epidemiology: Peacock seedlings are susceptible to this disease. The mode of transmission includes direct contact and indirect transmission through feed, drinking water, feces, cages, personnel and clothing. The virus can be transmitted not only through the respiratory tract and digestive tract, but also by planting eggs, and even insects can carry the virus. Prevention: first of all, it is necessary to do a good job in environmental hygiene and disinfection of breeding sites and kill pathogens. Secondly, do a good job of immunization of peacock seedlings, with "infectious bursal disease live vaccine" 1-2 times can be vaccinated. In addition, strengthen the care of young birds, keep warm in the cold season, and appropriately add a variety of vitamins to the feed. 4% ~ 5% glucose can be added to drinking water to replenish heat energy and improve physique. Treatment: Fabricius capsule powder + (kidney swelling or quick-acting kidney branch net or liver and kidney baby) + vitamin C soluble powder + (avian ganteling or plague quick-acting or Gankang). Dexamethasone can be injected intramuscularly in severe cases. Peacock breeding editor warned: Peacock clinical manifestations of the disease: the course of the disease is generally 1 week, at first found that the peacock has anal pecking phenomenon, followed by diseased bird feathers fluffy, reduced food intake, fear of cold, mental malaise, shrinking head, eyes closed, unwilling to move, lethargy on the ground, excretion of white and watery sparse feces, individual feces with blood, sunken eye sockets, dehydration, and finally weakness and death. So Tao is very careful!