Probiotic effect of FLOC on Vibrios in the pacific white shrimp Litopenaeus Vannamei

Abstract The advantages of FLOC over clear water (CW) in rearing juvenile Litopenaeus vannamei and its effects on Vibrio communities were evaluated. Survival rate in FLOC and clear water was recorded and a probiotic was tested under both conditions. Daily growth rate (DGR) was higher in FLOC (p  Vibrio strains was found to be unique to FLOC. No high level of lesions was observed in shrimp tissues from the FLOC + probiotic treatment; it suggests that the probiotic contributed to homeostasis and prevented outbreak of opportunistic pathogenic species.