Dietary Macrogard reduces Aeromonas hydrophila mortality in tench (Tinca tinca) through the activation of cellular and humoral defence mechanisms

Dietary Macrogard reduces Aeromonas hydrophila mortality in tench (Tinca tinca) through the... Influence of beta-1.3/1.6-glucan (Macrogard) on the innate immunity and protection against Aeromonas hydrophila in tench (Tinca tinca (L.)) was assessed. Macrogard was fed at doses of 0, 0.5, 1 and 2 g kg−1 of pellets for 1 month. The blood, spleen and head kidney from 10 fish of each group were separated and analysed for immunity parameters. Twenty tench from each group were infected with A. hydrophila. Macrogard at doses 1 and 2 g kg−1 of feed significantly (P < 0.05) increased the phagocytic activity of macrophages and proliferative response of mitogens stimulated lymphocytes. The same doses significantly (P < 0.05) increased lysozyme activity and Ig level in serum, compared to the control and dose 0.5 g kg−1 of feed. The challenge test showed that Macrogard reduced mortality of tench after experimental infection (5–35%). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Dietary Macrogard reduces Aeromonas hydrophila mortality in tench (Tinca tinca) through the activation of cellular and humoral defence mechanisms

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Publisher
Springer Netherlands
Copyright
Copyright © 2009 by Springer Science+Business Media B.V.
Subject
Life Sciences; Zoology ; Freshwater & Marine Ecology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-009-9133-2
Publisher site
See Article on Publisher Site

Abstract

Influence of beta-1.3/1.6-glucan (Macrogard) on the innate immunity and protection against Aeromonas hydrophila in tench (Tinca tinca (L.)) was assessed. Macrogard was fed at doses of 0, 0.5, 1 and 2 g kg−1 of pellets for 1 month. The blood, spleen and head kidney from 10 fish of each group were separated and analysed for immunity parameters. Twenty tench from each group were infected with A. hydrophila. Macrogard at doses 1 and 2 g kg−1 of feed significantly (P < 0.05) increased the phagocytic activity of macrophages and proliferative response of mitogens stimulated lymphocytes. The same doses significantly (P < 0.05) increased lysozyme activity and Ig level in serum, compared to the control and dose 0.5 g kg−1 of feed. The challenge test showed that Macrogard reduced mortality of tench after experimental infection (5–35%).

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: Nov 15, 2009

References

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