HAMP and infection: As shown in Figure 8D, a survival rate of 83.3% (25 out of 30) at day 14 after infection was observed in grass carp administrated with 1 μg/g hepcidin-25, whereas all fish died in day 5 were observed among the PBS, 0.1 μg/g hepcidin-25-, 0.1 μg/g hepcidin-20-, and 1 μg/g hepcidin-20-treated groups.