Search results
Results from the WOW.Com Content Network
Marek's disease is a highly contagious viral neoplastic disease in chickens.It is named after József Marek, a Hungarian veterinarian who described it in 1907.Marek's disease is caused by an alphaherpesvirus known as "Marek's disease virus" (MDV) or Gallid alphaherpesvirus 2 (GaHV-2). [2]
NDV is spread primarily through direct contact between healthy birds and the bodily discharges of infected birds. The disease is transmitted through infected birds' droppings and secretions from the nose, mouth, and eyes. NDV spreads rapidly among birds kept in confinement, such as commercially raised chickens.
Argas persicus, also known as fowl tick or poultry tick, is a small soft-bodied tick that is found primarily on domestic fowl such as chickens, ducks, and geese. It was first recorded by Lorenz Oken in 1818 in Mianeh, Persia, [1] [2] and named Rhynochoprion persicum.
Chicken infectious anemia, caused by Chicken anaemia virus [5] Epidemic tremor, caused by Tremovirus [6] Fowlpox, caused by viruses in the genus Avipoxvirus; Infectious bursal disease (IBD), also known Gumboro disease, caused by Infectious bursal disease virus; Lymphoid leukosis caused by avian sarcoma leukosis virus; Marek's disease; Newcastle ...
Infection may also enter through the exposure of broken skin of the feet or legs of the chickens, where it then can become established in the hock joints. Once the infection has entered the body, avian reovirus can survive in the tissues of chickens for many weeks. Resistance to reovirus infections in chickens is directly related to age.
The level of control with three treatments of cambendazole on days 3–4, 6–7, and 16-17 post-infection was 94.9% in chickens and 99.1% in turkeys. Levamisole (Ergamisol), fed at a level of 0.04% for 2 days or 2 g/gal drinking water for 1 day each month, has proven effective in game birds.
Most research has been focused on chickens due to the increased threat of viral diseases within the poultry population. The innate immune response is known to be essential for viral infection and as a result, the publication of the full chicken genome sequence is a source for identifying possible adjuvants and immunity genes.
Aviadenoviruses are adenoviruses that affect birds—particularly chickens, ducks, geese, turkeys and pheasants.There are 15 species in this genus. Viruses in this genus cause specific disease syndromes such as Quail Bronchitis (QB), Egg Drop Syndrome (EDS), Haemorrhagic Enteritis (HE), Pheasant Marble Spleen Disease (MSD), and Inclusion Body Hepatitis (IBH).