show Abstracthide AbstractThis research work has been carried out as a part of PhD thesis of Manimozhi. E, funded by NADP project entitled, Integrated Disease Surveillance monitoring system and Seed quality assessment to Augment Aquaculture Production in Tamil Nadu at TNJFU Campus, Madhavaram.This project contains 16S rRNA-amplicon seq data of 7 samples.1 T3 - Autochthonous B. subtilis fed2 T3I - Post- S.agalactiae infection3 T6 - Commercial B. velezensis fed4 T6I - Post- S. agalactiae infection5 T7 - Control healthy6 T7I - Post- S. agalactiae infection7 ESW - Healthy Etroplus suratensis gut