Dietary β-Glucan and Nucleotide Effects on Growth, Survival and Immune Responses of Pacific White Shrimp, Litopenaeus vannamei
Effects of dietary supplementation of β-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 β-glucans.Survival was significantly higher for shrimp fed the diet with 0.2% β-glucans compared to all other diets and was lowest for shrimp fed the basal diet.Shrimp fed diets containing β-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% β-glucans followed by those fed 0.2% nucleotides.Shrimp fed diets with 0.2% and 0.5% nucleotides and 0.2% β-glucans had significantly higher respiratory burst values than shrimp fed the basal diet.These results indicated that dietary supplementation of either nucleotides or β-glucans has beneficial effects in improving shrimp performance when cultured at low salinity.
dietary β-glucan nucleotide immune response growth pacific white shrimp
H.SHIVANANDA MURTHY P.LI A.L.LAWRENCE D.M.GATLIN Ⅲ
Department of Wildlife and Fisheries Sciences, Texas A & M University System,College Station, Texas, Department of Wildlife and Fisheries Sciences, Texas A & M University System,College Station, Texas,
国际会议
广州
英文
36-44
2017-03-01（万方平台首次上网日期，不代表论文的发表时间）