期刊
FISH & SHELLFISH IMMUNOLOGY
卷 10, 期 6, 页码 505-514出版社
ACADEMIC PRESS LTD
DOI: 10.1006/fsim.2000.0266
关键词
Penaeus monodon; beta-1,3-glucan; brooders; phagocytosis; superoxide anion
The present study evaluated the effectiveness of beta-1,3-glucan derived from Schizophyllum commune in enhancing shrimp survival as well as haemocyte phagocytosis and superoxide anion production in brooder Penaeus monodon. Pond-reared P. monodon adults (135 +/- 25 g) stocked in outdoor or indoor tanks were fed either a test diet containing beta-1,3-glucan (2.0 g kg(-1)) or a glucan-free control diet for 40 days. Their survival was compared. The brooders reared in indoor tanks were analysed at days 0, 1, 3, 6, 12, 24, 30 and 40 for their haemocyte phagocytic activity and superoxide anion production. The results showed that regardless of indoor or outdoor rearing the survival rate of shrimp fed the glucan diet was significantly higher (P<0.001) than that of the control group. The brooders showed enhanced haemocyte phagocytic activity, cell adhesion and superoxide anion production when glucan was administered in their diets. The immunostimulatory enhancement peaked at day 24 after starting the dietary exposure and subsequently decreased to the pre-feeding level at the end of the 40 days feeding trial. (C) 2000 Academic Press.
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