Abstract
Pathological, Clinicopathological and Molecular Investigations on Chickens Experimentally Infected with Avian Leucosis Virus Type J
Highlights
Avian retroviruses have been a major cause of mortality in poultry (Wang et al, 2017).These viruses, generally referred to as avian leucosis viruses (ALV), mainly induce leucosis affecting the various hemopoietic cells
Antibody titer for avian leucosis virus type J (ALV-J) The result revealed that Avian leucosis virus type J (ALV-J) antibody titer was significantly (P
A small whitish nodule was observed on the border of the Advances in Animal and Veterinary Sciences Table 3: Hemogram of chicks experimentally infected with avian leucosis virus type J during the experimental period. (Mean±SE, N=10)
Summary
Avian retroviruses have been a major cause of mortality in poultry (Wang et al, 2017).These viruses, generally referred to as avian leucosis viruses (ALV), mainly induce leucosis affecting the various hemopoietic cells. Avian leucosis virus (ALV) is capable of inducing a variety of neoplasms, lymphoid leucosis is the most common naturally occurring B-cell lymphoma caused by ALV. In Egypt, the diagnosis of ALV infection is based on gross pathological lesions and antibody titer in imported 21. US Publishers weeks old broiler breeder chickens. The infection with ALV J causes up to 36% morbidity and 8% mortality (Sultan et al, 2004). ALV J infection causes serological, hematological and pathological changes in 25 weeks old broiler breeder farms suffering from visceral and bone tumor formation, and causing up to 40% morbidity and 16% mortality (El-Gohary et al, 2000). Antibody titer was 26% with 3.5% mortality (Abdel Gayed et al, 2017)
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