Fig. 8

Differences of bacterial taxa in Cor, BC and FC after IHNV infection. a–c Bar chart of the log-transformed LDA value of bacterial taxa found to be significantly associated with control fish and trout infected with IHNV at 4 DPI in Cor (a), BC (b), and FC (c) by LEfSe (p < 0.05). d Relative abundance of the pathogenic bacteria (Aeromonas, Bosea, and Lysinibacillus) in the Cor, BC, and FC. e Relative abundance of the beneficial bacteria (Lactococcus, Pedobacter, and Deinococcus) in the Cor, BC, and FC. Statistical differences were assessed by unpaired Student’s t test. Data are presented as mean ± SEM of three biological duplicates. *p < 0.05, **p < 0.01, ***p < 0.001