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The disease affects all ages of chickens. The disease can persist in the flock for 2-3 weeks and signs of the disease are seen 1–3 days after infection. Transmission of the disease is through direct interaction, airborne droplets, and drinking contaminated water. Chickens having infection and those carriers contribute highly to the disease ...
It causes chronic respiratory disease (CRD) in chickens and infectious sinusitis in turkeys, chickens, game birds, pigeons, and passerine birds of all ages. [1] [2] Mycoplasma gallisepticum is a significant pathogen in poultry. Mycoplasmosis is the disease caused by infection with mycoplasmas. Mycoplasmas have many defining characteristics.
Duck plague, caused by Anatid alphaherpesvirus 1; 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 ...
Blue cone monochromacy (BCM) is an inherited eye disease that causes severe color blindness, poor visual acuity, nystagmus, hemeralopia, and photophobia due to the absence of functional red (L) and green (M) cone photoreceptor cells in the retina. BCM is a recessive X-linked disease and almost exclusively affects XY karyotypes.
Avian influenza, also known as avian flu or bird flu, is a disease caused by the influenza A virus, which primarily affects birds but can sometimes affect mammals including humans. [1] Wild aquatic birds are the primary host of the influenza A virus, which is enzootic (continually present) in many bird populations.
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. Argas persicus appears yellowish-brown when starved and slatey-blue when ...
Listeriosis is an infectious but not contagious disease caused by the bacterium Listeria monocytogenes, far more common in domestic animals (domestic mammals and poultry), especially ruminants, than in human beings. It can also occur in feral animals—among others, game animals—as well as in poultry and other birds.
The disease is the cause of decreased vision in 2.2 million people, of whom 1.2 million are completely blind. [2] Trachoma is a public health problem in 42 countries across Africa, Asia, the Middle East, and Central and South America. [7] There are 136.9 million people at risk. [2] It results in US$8 billion of economic losses a year. [2]