Recent aspects of metapneumovirus in broiler/ review
2023
aymen Al-Alhially
Avian metapneumovirus (AMPV) is a worldwide an acute, extremely contagious upper respiratory illness in Turkey. Chickens may also be affected with virus and cause Swollen Head Syndrome. Sometime it is associated with reproductive affection. The disease's first disorder appeared in late 1970 in South Africa, where 6 subtypes (A, B, C, and D) and 2 additional subtypes were found. The virus belongs to the family Paramyxoviridae, genus Metapneumovirus. . Both of systemic and local immunity may be developed but there is no relation of maternal immunity for produce production. The disease causes an important economic loss due to decrease in egg production and bad egg shell quality. The disease spread between birds rapidly and a wild birds may be infected and paly role in transmission of the disease Also in turkey there is no specific clinical signs and lesion and while the most effective methods to detection are Elisa and (RT-PCR) carry out the disease diagnosis. Biosecurity programs of vaccination are effective for controlling of disease. Both of alive attenuated and inactivated vaccines are useful for provide a good protection against the disease While, new vaccines were developed to avoid infection.
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