Species- and diet-specific aquaculture wastewater nutrient profile: Implications for aquaponics and development of sustainable aquaponics diet
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F23%3A43906231" target="_blank" >RIV/60076658:12520/23:43906231 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.aquaculture.2023.739307" target="_blank" >https://doi.org/10.1016/j.aquaculture.2023.739307</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.aquaculture.2023.739307" target="_blank" >10.1016/j.aquaculture.2023.739307</a>
Alternative languages
Result language
angličtina
Original language name
Species- and diet-specific aquaculture wastewater nutrient profile: Implications for aquaponics and development of sustainable aquaponics diet
Original language description
Aquaponic (AQP) systems use aquaculture wastewater to supply the nutrients for plant growth. Recent fish meal (FM) production and price trends call for adopting of financially and environmentally sustainable protein sources for fish feed. However, different protein sources can alter the macro-and micro-nutrient effluxes from fish tanks and their nutritional value for plant growth. Early attempts to formulate the AQP diets have focused on enhancing nutrient efflux via dietary additives such as potassium diformate or potassium chloride. Here we present an alternative approach. We tested the effect of four aquafeeds differing in protein sources (complete substitution of FM with black soldier fly meal, BSFM; poultry blood meal, PBM; and hydrolyzed feather meal, HFM) on nutrient efflux in the water from Colossoma macropomum and Clarias gariepinus. The water from PBM and HFM-fed fish showed the highest efflux of TN (0.106 and 0.097 mg.L-1.g of feed, respectively), while the efflux of soluble reactive phosphorus and calcium was highest in FM-fed fish (0.012 and 0.028 mg.L-1.g of feed, respectively). BSFM-fed fish had the highest efflux of magnesium and potassium (0.008 and 0.023 mg.L-1.g of feed, respectively). Regarding macronutrients, the species-specific effects were observed only in sulphur, with higher efflux from C. macropomum. Iron efflux was not affected by diet, while higher efflux was observed in the trial with Clarias gariepinus. Effluxes of other micronutrients showed diet-and species-specific effects, except for zinc and manganese, with similar effluxes between species. In general, we found that it is possible to manipulate the nutrient efflux from RAS using alternative sustainable aquafeed components.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40103 - Fishery
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Aquaculture
ISSN
0044-8486
e-ISSN
1873-5622
Volume of the periodical
568
Issue of the periodical within the volume
neuvedeno
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
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UT code for WoS article
000947841700001
EID of the result in the Scopus database
2-s2.0-85147939665