Dimitroglou, Arkadios; Moate, Roy; Janssens, Thomas; Spring, Peter; Sweetman, John W.; Davies, Simon J. (2011). Field Observations on the Effect of a Mannan Oligosaccharide on Mortality and Intestinal Integrity of Sole (Solea senegalensis, Kaup) Infected by Photobacterium damselae subsp. piscicida Journal of Aquaculture Research and Development, s1 Walsh Medical Media 10.4172/2155-9546.S1-013
|
Text
field-observations-on-the-effect-of-a-mannan-oligosaccharide-on-mortalityand-intestinal-integrity-of-sole-solea-senegalensis-kaup.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (839kB) | Preview |
This study was conducted in order to investigate the effect of a mannan oligosaccharide (MOS) on the intestinal morphology of sole (Solea senegalensis, Kaup) reared under commercial conditions. The dietary inclusion rate for MOS was 0.4% and it was used either alone or in combination with a vaccination regime against bacterial diseases (Pasteurella spp. and Vibrio spp.). One week after the start of the experimental period, a natural outbreak of pasteurellosis, caused by Photobacterium damselae subsp.piscicida,occurred in all the groups of fish.A two-way ANOVA showed that only MOS supplementation reduced fish mortality by ca. 8% (P = 0.050). Additionally, light microscopy examination of the intestine revealed that MOS supplementation significantly increased the mucosal folding by 29% (P = 0.016) in the anterior intestinal region and by 33% (P = 0.002) in the posterior intestinal region. Scanning electron microscopy demonstrated that both MOS supplementation and vaccination significantly increased microvilli density on the enterocyte surfaces in the anterior intestinal regionby 13% (P = 0.028) and 30% (P = 0.001) respectively. In the posterior intestinal region neither MOS supplementation nor vaccination significantly affected the microvilli density (P = 0.005).The present study suggests that dietary MOS supplementation protects the intestinal morphology of infected sole and hinders the development of pathogenic infection, possibly by binding with Photobacterium damselae subsp. piscicida, resulting in reduced mortality of infected fish.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
School of Agricultural, Forest and Food Sciences HAFL School of Agricultural, Forest and Food Sciences HAFL > Agriculture School of Agricultural, Forest and Food Sciences HAFL > Agriculture > Livestock and Horses |
Name: |
Dimitroglou, Arkadios; Moate, Roy; Janssens, Thomas; Spring, Peter; Sweetman, John W. and Davies, Simon J. |
Subjects: |
S Agriculture > SH Aquaculture. Fisheries. Angling |
ISSN: |
2155-9546 |
Publisher: |
Walsh Medical Media |
Language: |
English |
Submitter: |
Thomas Janssens |
Date Deposited: |
07 Feb 2023 15:27 |
Last Modified: |
07 Feb 2023 15:27 |
Publisher DOI: |
10.4172/2155-9546.S1-013 |
Uncontrolled Keywords: |
Dietary mannan oligosaccharide; MOS; Flatfish; Intestinalhistology; Photobacterium damselae subsp. piscicida; Aquaculture |
ARBOR DOI: |
10.24451/arbor.18682 |
URI: |
https://arbor.bfh.ch/id/eprint/18682 |
Actions (login required)
 |
View Item |