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A comparative study of the effects of pelleted and extruded feed on growth, financial revenue and nutrient loading of Nile tilapia (Oreochromis niloticus L.) cage culture in a lacustrine environment

Permanent link
https://hdl.handle.net/10037/24501
DOI
https://doi.org/10.1080/10454438.2021.2011528
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Accepted manuscript version licensed CC BY-NC. (PDF)
Date
2021-12-05
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Musa, Safina; Aura, Christopher Mulanda; Tomasson, Tumi; Sigurgeirsson, Ólafur; Thorarensen, Helgi
Abstract
We compared the benefits of using extruded feed (EF), against pelleted feed (PF) to guide cage culture investments in Great Lakes. Three out of six cages in the same farm had fish that were fed EF and the other half, belonging to a different farm had fish that were fed PF. The diets were similar in crude protein, lipid and energy content. However, the fiber content in PF was 4 times higher than that of EF. The fish fed on EF grew better (438.0 ± 7.4 g) than the fish fed on PF (220.8 ± 2.9 g). The cost of production for EF was about 26% lower than for PF, primarily because of better feed utilization. The load of P and N for PF diet was 59% and 29% higher, respectively, than when EF was used. Therefore, EF feed delivered better economic gains with lower environmental impact than PF feed.
Description
This is an Accepted Manuscript of an article published by Taylor & Francis in the Journal of Applied Aquaculture on 5 December 2021, available online: https://doi.org/10.1080/10454438.2021.2011528.
Publisher
Taylor & Francis
Citation
Musa, Aura, Tomasson, Sigurgeirsson, Thorarensen HT. A comparative study of the effects of pelleted and extruded feed on growth, financial revenue and nutrient loading of Nile tilapia (Oreochromis niloticus L.) cage culture in a lacustrine environment. Journal of Applied Aquaculture. 2021
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