IL6 and hydrops fetalis: Porcine multiplex ELISA analysis of the plasma at the end of the experiment between LF and HF group for the cytokines IFN-α, IFN-γ, IL-1β, IL-10, IL-12p40, IL-4, IL-6, IL-8 and TNF-α (p = 0.32) did not show any differences between both groups (Table 2).