TY - JOUR T1 - The Differences of Serum IFN-β and Antibodies Concentrations in Chickens at Early and Late ALV-J Infection Stage AU - Wang, Yan AU - Yin, Yue AU - Lan, Xi AU - Tian, Kai AU - Li, Tian-Jie AU - Zhu, Qing AU - Liu, Yi-Ping AU - Zhao, Xiao-Ling AU - Yin, Hua-Dong AU - Hu, Yao-Dong JO - Journal of Animal and Veterinary Advances VL - 13 IS - 15 SP - 930 EP - 936 PY - 2014 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2014.930.936 UR - https://makhillpublications.co/view-article.php?doi=javaa.2014.930.936 KW - ALV-J KW -IFN-B KW -immunoglobulin KW -ALV-J infection stage KW -chicken AB - 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. ER -