Hundred Days
9.The pathologic change of ducks of every group was respectively observed using random sampling method in sixty days,one hundred days, one hundred and twelve days. Hepatic fibrosis indexes of those ducks liver tissue,such as DHBV, DNA, liver function were detected in one hundred days. Results:In CCl 4 model group steatosis was obvious,liver cells watery degeneration with middle degree inflammatory cell infiltration and clear fibroplastic proliferation;

