Detection of avian leukosis virus (ALV) in albumen of Shiraz commercial and local layer flocks using ELISA and RT-PCR

detection of avian leukosis virus (alv) in albumen of shiraz commercial and local layer flocks using elisa and rt-pcr

avian leukosis viruses (alvs) cause different types of tumours in poultry and can affect the health and egg production of the birds. to investigate the presence of the virus in chicken layer flocks in shiraz, 222 egg albumen from local layer breeder (25 eggs), local layer grand parent (30 eggs), broiler breeder (60 eggs), commercial layer (46 eggs) and broiler grand parent (61 eggs) were tested...

Detection of avian leukosis virus subgroup J in albumen of commercial and native fowl eggs using RT-PCR in Fars province of Iran

The subgroup J of ALV (ALV-J) has emerged as an important pathogen of meat-type chickens since1989. This virus is responsible for economic losses due to both mortality and depressed performance inchickens. So, the objective of this study is the detection of ALV-J in the albumen of commercial and nativefowl eggs using RT-PCR. Three hundred and seventy egg albumens were randomly selected from dif...

detection of avian leukosis virus subgroup j in albumen of commercial and native fowl eggs using rt-pcr in fars province of iran

the subgroup j of alv (alv-j) has emerged as an important pathogen of meat-type chickens since1989. this virus is responsible for economic losses due to both mortality and depressed performance inchickens. so, the objective of this study is the detection of alv-j in the albumen of commercial and nativefowl eggs using rt-pcr. three hundred and seventy egg albumens were randomly selected from dif...

Detection of Avian Encephalomyelitis Virus in Broiler Chickens in Iran Using RT-PCR and Histopathological Methods

Avian encephalomyelitis is caused by a Tremovirus and primarily affects chickens. The virus can infect young chicks and cause nervous symptoms. Vaccines are used to control the disease in breeders. Recently, the occurrence of the disease is causing concern in the poultry industry. In the present study, we report a case of avian encephalomyelitis in one broiler farm in Kashan (center of Iran). T...

Occurrence of avian leukosis virus subgroup J in commercial layer flocks in China.

Mortality from myeloid leukosis was observed in commercial layers from 12 farms in northern China. Affected chickens were extremely thin and dehydrated, bleeding occurred in feather follicles and claws, combs were pale and anaemic, phalanges were swollen, and many yellowish-white tumours were seen on the visceral surface of the sternum. Focal tumour cells, with spherical eosinophilic granules i...

Hemangioma and Myelocytomas Induced by Avian Leukosis Virus Subgroup J in Commercial Layer Flocks