Dietary -Glucan and Nucleotide Effects on Growth, Survival and Immune Responses of Pacific White Shrimp, Litopenaeus vannamei Academic Article uri icon


  • Effects of dietary supplementation of -glucans and nucleotides on growth, survival and immune responses of the Pacific white shrimp (Litopenaeus vannamei) at a low salinity (5 ppt) were evaluated during a 30 d feeding trial. Final mean weight of shrimp fed nucleotides at 0.5% was highest and significantly different from those fed the basal diet or diets supplemented with -glucans. Survival was significantly higher for shrimp fed the diet with 0.2% -glucans compared to all other diets and was lowest for shrimp fed the basal diet. Shrimp fed diets containing -glucans and nucleotides had generally better immune responses than shrimp fed the basal diet with higher total hemocyte count (THC) recorded for shrimp fed 0.2% -glucans followed by those fed 0.2% nucleotides. Shrimp fed diets with 0.2% and 0.5% nucleotides and 0.2% -glucans had significantly higher respiratory burst values than shrimp fed the basal diet. These results indicated that dietary supplementation of either nucleotides or -glucans has beneficial effects in improving shrimp performance when cultured at low salinity.

published proceedings

  • Journal of Applied Aquaculture

author list (cited authors)

  • Murthy, H. S., Li, P., Lawrence, A. L., & Gatlin, D. M.

citation count

  • 50

complete list of authors

  • Murthy, H Shivananda||Li, P||Lawrence, AL||Gatlin, DM

publication date

  • August 2009