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dc.creatorKabir, K.en_US
dc.creatorVerdegem, M.en_US
dc.creatorSchrama, J.W.en_US
dc.creatorVerreth, J.en_US
dc.creatorPhillips, M.J.en_US
dc.date.accessioned2020-06-11T07:03:59Z
dc.date.available2020-06-11T07:03:59Z
dc.date.issued2020
dc.identifier.citationAquaculture, 528: 735506.en_US
dc.identifier.issn0044-8486en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12348/4193
dc.description.abstractDietary non-starch polysaccharides (NSP) changes the nutrient digestibility and faecal characteristics in fish. This study assessed the effect of the type of dietary NSPs on fish production and the contribution of natural food to the total fish production in semi-intensively managed tilapia ponds. Twelve ponds, each divided into three equally-sized compartments, were assigned to test the effect of the type of dietary NSPs (i.e. “PecHem-Diet”, a diet with easily fermentable NSP, vs “LigCel-Diet”, a diet with slowly fermentable NSP). Fish were restrictively fed, based on the crude protein content of the feed. Three feeding levels (“no = 0”, “low = 9 g.kg-0.8.d-1” and “high= 18 g.kg-0.8.d-1”) nested in pond were analysed in a split plot design. Initial fish biomass was 3084 g.compartment-1 and the experiment lasted 56 days. With the “LigCel-Diet” biomass gain was higher (2599 vs 2192 g.compartment-1) and feed conversion ratio (FCR) was lower (1.4 vs 1.9; P < .001) than with the “PecHem-Diet”. Diet had no effect on fish survival and specific growth rate (SGR). For both diets, increasing feeding level increased (P < .001) biomass gain, fish survival, FCR and SGR. There was a significant interaction effect (P < .05) between diet and feeding level on FCR. Fish body composition was the same in both diets. With the “LigCel-Diet”, the apparent digestibility coefficient (ADC) was higher (P < .001) for crude protein, fat, phosphorus and calcium and lower (P < .05) for ash compared to the other diet. Neither feeding level nor the interaction between diet and feeding level influenced the apparent digestibility coefficient (ADC) of any nutrient. Diet composition did not alter the organic matter (OM) composition of the faeces. d13C and d15N from the stable isotope analysis revealed that N gain in fish originated from both feed and natural food of the pond. Natural food abundance in the pond increased over time for both diets. Chlorophyll-a was higher in the pond fed with “LigCel- Diet”. Fish gut content and calculated N gain indicated an enhanced contribution of natural food to fish growth in ponds fed with “LigCel-Diet”. In conclusion, the type of dietary NSP determines tilapia productivity in semiintensive managed ponds by altering food web productivity.en_US
dc.formatPDFen_US
dc.languageenen_US
dc.publisherElsevieren_US
dc.rightsCC-BY-4.0en_US
dc.subjectdietsen_US
dc.subjectlife below wateren_US
dc.subjectpond cultureen_US
dc.subjectpectinen_US
dc.subjectcelluloseen_US
dc.subjectligninen_US
dc.subjectstable isotopeen_US
dc.subjectadcen_US
dc.titleDietary non-starch polysaccharides influenced natural food web and fish production in semi-intensive pond culture of Nile tilapiaen_US
dc.typeJournal Articleen_US
dcterms.bibliographicCitationKabir, K. A. et al. (2020). Dietary non-starch polysaccharides influenced natural food web and fish production in semi-intensive pond culture of Nile tilapia. Aquaculture, 528: 735506.
cg.contributor.crpFISHen_US
cg.contributor.funderCGIAR System Officeen_US
cg.coverage.countryBangladeshen_US
cg.coverage.regionSouth Asiaen_US
cg.identifier.worldfish4702
cg.subject.agrovocaquacultureen_US
cg.subject.agrovocfeedsen_US
cg.subject.agrovocfishen_US
cg.subject.agrovoctilapiaen_US
cg.subject.agrovocfish feedingen_US
cg.contributor.affiliationWageningen University & Research Centreen_US
cg.contributor.affiliationWorldFishen_US
cg.identifier.statusOpen accessen_US
cg.identifier.ISIindexedISI indexeden_US
cg.contribution.worldfishauthorKabir, K.en_US
cg.contribution.worldfishauthorPhillips, M.J.en_US
cg.description.themeSustainable aquacultureen_US
dc.identifier.doihttps://dx.doi.org/10.1016/j.aquaculture.2020.735506en_US
cg.creator.idMarc Verdegem: 0000-0002-2058-3894en_US
cg.creator.idJohan Verreth: 0000-0001-7277-5129en_US
cg.creator.idMichael John Phillips: 0000-0002-0282-0286en_US


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