The present investigation provides a comprehensive report of cytokine expression profiles in the reproductive tissue (ovary and oviduct) of normal and induced molting White Leghorn hens. Cytokines are produced to carry out various normal physiological processes in the reproductive system of mammals. In the ovary and oviduct of mammals, cytokines produce effects through both paracrine and autocrine pathways. However, the role and mechanism of cytokine function in the reproductive system of birds are not known.