Modelling the effect of prebiotics, probiotics and other functional additives on the growth, feed intake and feed conversion of European sea bass (Dicentrarchus labrax) juveniles
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Publication date
2023-09-14ISSN
2352-5134
Abstract
Dietary supplementation of aquafeeds with functional additives is a commonly employed strategy in order to
reduce the potential negative effects associated to fishmeal (FM) and fish oil (FO) replacement by alternative
protein and oil sources. Nevertheless, the wide variety of functional ingredients with different bioactive properties hinders the selection of appropriate dietary supplementation strategies on feed formulation. The present
study aimed to develop an observational multiple-linear regression (MLR) model to identify the effects of a
variety of functional ingredients supplementation on European sea bass juveniles (Dicentrarchus labrax) growth
performance and feed utilization. A literature survey was conducted gathering a total of 61 dietary treatments.
The functional ingredients were classified in three main groups, namely, “probiotics”, “prebiotics” or “others”
(including plant derived compounds such as essential oils, extracts and powders). Three different MLR were
obtained and validated, allowing to describe the effects of functional ingredients supplementation on fish specific
growth rate (SGR) (with a final R-squared (R2) = 0.96, adjusted R-squared (adj R2) = 0.92 and a p-value= 7.21E-
08)), fish feed intake (FI) (R2 = 0.97, adj R2 = 0.95 and a p-value= 5.42E-12)) and fish feed conversion ratio
(FCR) (R2 = 0.90, adj R2 = 0.80 and a p-value= 2.02E-05)). MLR model trimming, allowed the detection of a
significant positive correlation (cor) between dietary prebiotics supplementation and SGR (cor= 0.32, p-value=
8.52E-04). On the contrary, prebiotic supplementation presented a negative correlation with fish FI (cor= − 0.44,
p-value= 6.27E-05) and FCR (cor= − 0.41, p-value= 8.96E-05).
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
639 - Hunting. Fishing. Fish breeding
Pages
12
Publisher
Elsevier
Is part of
Aquaculture Reports
Citation
Serradell, A., S. Torrecillas, F. Soares, T. Silva, and D. Montero. 2023. "Modelling The Effect Of Prebiotics, Probiotics And Other Functional Additives On The Growth, Feed Intake And Feed Conversion Of European Sea Bass (Dicentrarchus Labrax) Juveniles". Aquaculture Reports 32: 101729. doi:10.1016/j.aqrep.2023.101729.
Grant agreement number
EC/H2020/818367/EU/Genomic and nutritional innovations for genetically superior farmed fish to improve efficiency in European aquaculture/AquaIMPACT
Program
Aqüicultura
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2555]
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