分别于试验第0天、第7天、第14天、第28天、第56天检测草鱼血液中白细胞吞噬活性，血清溶菌酶、超氧化物歧化酶活性和补体C3含量。
The activities of blood leukocyte phagocytic, serum lysozyme, and serum superoxide dismutase, and the content of serum complement C3 were determined on day 0, 7, 14, 28 and 56, respectively.
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