In order to study the expression of Hu-IFN-α Gene in F1 generation of transgenic Grass carp. The materal is the group of trans-Hu-IFN-α grass carp's F1 generation. Three hundred and thirty-two tails of trans-Hu-IFN-α grass carps are collected randomly. After isolation the serum, test the target gene's expression level in the F1 generation by using the method of ELISA. The results show the expression rate is 52.1%, a less satisfactory one. So, the trans-Hu-IF -α grass carp's F1 generation can expression human interfe...