Add to ORKGNot AvailableA study was conducted to determine the immunomodulatory effect of probiotic mixture on the nonspecific immune response and disease resistance of Labeo rohita. Fish were fed with six different test diets with or without probiotics, namely, T1 (basal feed [BF] without probiotics), T2 (BF+Bacillus subtilis [BS]+Lactococcus lactis [LL]), T3 (BF+LL+Saccharomyces cerevisiae [SC]), T4 (BF+BS+SC), T5 (BF+BS+LL+SC), and T6 (BF+heat-killed bacteria of BS+LL+SC). During the prechallenge period, significantly higher (P<0.01) nitroblue tetrazolium assay (NBT), red blood cells (RBC), hemoglobin (Hb), globulin, and albumin content were recorded in the probiotic-supplemented diet group. Feeding all the three probiotics significantly dec...