From the results of this study, it is logical to conclude that the
dietary supplementation of L. plantarum VSG3 can improve the
growth, immune parameters, and survival of rohu against
A. hydrophila infection. To elevate the growth and immunity of L.
rohita, dietary L. plantarum VSG3 administration at 108 cfu g1 is an
optimal dose. Again, the FCRwas lower in the treated group after 60
days of feeding, suggesting that addition of L. plantarum VSG3 in
feed can significantly improve product yield. Further studies using
other pathogenic bacteria and other fish species to establish
L. plantarum VSG3 as immunostimulant is warranted. Also, the
mode of action of probiotics especially the modulation of host
immune responses and disease resistance need to explore in future