Fig. 6From: Interferon-γ acts as a regulator in the trade-off between phagocytosis and production performance in dwarf chickensLevels of follicle-stimulating hormone (FSH) in dwarf chickens after interferon-γ (IFN-γ) injection in vivo (n = 30). Bars represent the mean ± standard error (SE). ** indicates P < 0.01Back to article page