Immunomodulatory effects of dietary intake of chitin, chitosan and levamisole on the immune system of Cyprinus carpio and control of Aeromonas hydrophila infection in ponds

Autor:	Venkatesan Arul, Ayyaru Gopalakannan
Rok vydání:	2006
Předmět:	Innate immune system macromolecular substances Aquatic Science Biology Levamisole biology.organism_classification Cyprinus Microbiology carbohydrates (lipids) Chitosan Aeromonas hydrophila chemistry.chemical_compound Common carp Immune system Chitin chemistry medicine bacteria medicine.drug
Zdroj:	Aquaculture. 255:179-187
ISSN:	0044-8486
DOI:	10.1016/j.aquaculture.2006.01.012
Popis:	To determine the effect of chitin, chitosan and levamisole on the immune response and growth of common carp ( Cyprinus carpio ) under field conditions, fish were fed with these compounds for a period of 90 days and then challenged with Aeromonas hydrophila . Dietary supplementation of chitosan, levamisole and chitin enhanced the growth of all treated fish significantly ( P P P A. hydrophila on the 45th day, the relative percentage survival (RPS) was significantly higher in chitosan fed fishes (80%) followed by levamisole (66.7%), and chitin (40%). However, the RPS decreased to 68.9%, 57.8% and 37.5% on the 90th day after the challenge with A. hydrophila . The results indicate that dietary intake of chitosan enhances the innate immune system and survivability of common carp ( C. carpio ) in ponds. The role of chitosan, chitin and levamisole as immunostimulants with regard to protection against A. hydrophila infection is discussed.
Databáze:	OpenAIRE
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