Abstract: To discuss the effects of the recombinant interleukin-2 on the immune function of the Gushi chicken, the gross anatomy of technology and the immunity technology were applied to investigate the impacts of the recombinant interleukin-2 on immune function of Gushi chicken. The antibody levels in the every immunized group which was injected interleukin-2 were higher than the average Gushi chicken Shigella vaccine group, and they were notably higher than the control group. The antibody levels of all the groups in the second to third weeks achieved the highest level, and they remained a constant level in the fourth to seventh weeks. The spleen index, the thymus index and the IBD index in the every immunized group which was injected interleukin-2 were basically higher than the control group and chicken Shigella vaccine group. Gushi chicken recombinant interleukin-2 could promote the rapid growth and maturity of the chicken immune organ, and could enhance the immune function of chicken to resist all kinds of infection of pathogenic microbiology.

Key words: recombinant interleukin-2; Gushi chicken; immunity function; antibody