eISSN: 1644-4124
ISSN: 1426-3912
Central European Journal of Immunology
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1/2015
vol. 40
 
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abstract:

Experimental immunology
Influence of β-glucan Leiber®Beta-S on selected innate immunity parameters of European eel (Anguilla anguilla) in an intensive farming system

Andrzej K. Siwicki
,
Patrycja Schulz
,
Stanisław Robak
,
Krzysztof Kazuń
,
Barbara Kazuń
,
Edward Głąbski
,
Ewa Szczucińska

(Centr Eur J Immunol 2015; 40 (1): 5-10)
Online publish date: 2015/04/22
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Nutritional support plays an important role in promoting high cellular and humoral innate immunity activity and in preventing outbreaks of disease. The effects of β-glucan Leiber®Beta-S dietary supplementation on selected nonspecific immune parameters in juvenile European eel (Anguilla anguilla) in an intensive culture system were studied. The fish were fed commercial pellets containing either 0 (control group) or 200 mg Leiber®Beta-S kg-1 of feed (glucan-fed group). After four and eight weeks of feeding, the levels of the following immunological parameters were measured: phagocyte respiratory burst activity, phagocyte potential killing activity, lymphocyte proliferation stimulated by concanavaline A or lipopolysaccharide, serum lysozyme activity, and total immunoglobulin (Ig) serum levels.

After four and eight weeks of feeding 200 mg Leiber®Beta-S kg feed-1 the levels of all immune parameters were statistically significantly higher (p < 0.05) in the glucan-treated group than in the control group.

After eight weeks of feeding the fish 200 mg Leiber®Beta-S kg feed-1 and after an additional eight weeks in ponds, the levels of all immune parameters, excluding lymphocyte proliferation stimulated by concanavaline A, were statistically significantly higher (p < 0.05) in the glucan-fed group than in the control group. These data suggest that feeding juvenile eel Leiber®Beta-S for four and eight weeks might improve innate immunity.
keywords:

β-glucan, innate immunity, eel, immunostimulant

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