@article{MAKHILLJAVA201413154408, title = {The Differences of Serum IFN-β and Antibodies Concentrations in Chickens at Early and Late ALV-J Infection Stage}, journal = {Journal of Animal and Veterinary Advances}, volume = {13}, number = {15}, pages = {930-936}, year = {2014}, issn = {1680-5593}, doi = {javaa.2014.930.936}, url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2014.930.936}, author = {Yan,Yue,Xi,Kai,Tian-Jie,Qing,Yi-Ping,Xiao-Ling,Hua-Dong and}, keywords = {ALV-J,IFN-B,immunoglobulin,ALV-J infection stage,chicken}, abstract = {Interferon-β (IFN-β) and immunoglobulin M (IgM), immunoglobulin G (IgG) are essential in anti-retrovirus progress. ALV-J is a kind of ubiquitous retrovirus in chicken. To investigate whether natural Avian Leukosis Virus strain J (ALV-J) infection has effect on the concentrations of serum IFN-β, IgM and IgG, two important time points after hatching, 3 and 18 weeks age which represent the early and late stages of ALV-J infection, respectively were decided to study. The results reveal that the serum IFN-β, IgM and IgG increase at the early stage of ALV-J infection while decrease at the late stage compared with the control chickens which indicate that ALV-J infection boosts the immune response and up-regulates IFN-β and antibody while long-term infection suppresses immune function and down-regulates IFN-β and antibody.} }