Cited by 37Aquaculture Nutrition and GrowthAquaculture disease management and microbiotaFish Biology and Ecology Studies

Macronutrient selection through post-ingestive signals in sharpsnout seabream fed gelatine capsules and challenged with protein dilution

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ALMAIDAPAGAN, P, RUBIO, V, MENDIOLA, P, DECOSTA, J, MADRID, J·2006·Physiology & Behavior

Abstract

Sharpsnout seabream ability for macronutrient self-selection was studied using gelatine capsules containing pure macronutrients. In particular, the existence of non-oropharyngeal chemosensory pathways involved on protein (P), fat (F) and carbohydrate (CH) selection, as well as sharpsnout seabream response to dietary protein dilution were investigated. In a sequence of experimental phases, sharpsnout seabream were fed a pelleted complete diet, an encapsulated complete diet or a combination of separately encapsulated pure macronutrients. In order to induce associative learning, capsules containing a given macronutrient were paired with a particular colour. The animals composed a diet containing 62.7% P, 21.3% CH and 16.0% F, in terms of macronutrient percentage intake, and this selection pattern was maintained throughout all experimental phases. In a second experiment, individually kept sharpsnout seabream were challenged with protein dilution. After protein capsules were diluted (from 91.9% P to 56.3% P) with cellulose, the animals increased their protein intake to compensate for dilution in such a way that their energy intake was not significantly modified (17.4 kJ/100 g BW vs. 17.6 kJ/100 g BW after dilution). These results show that sharpsnout seabream feeding on encapsulated diets are able to select and maintain a particular diet composition, as well as sustain their energy intake, without using the diet's oropharyngeal chemosensory properties. Moreover, they were also able to maintain their protein intake after dilution, which highlights the importance of this macronutrient in this omnivorous species.

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Crossref · 10.1016/j.physbeh.2006.05.027

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  • Protein restriction induces a specific selection for protein, marked by protein-specific increases in preference and motivation.

    “Protein restriction also induces a specific selection for protein, marked by protein-specific increases in preference and motivation”
  • When given a choice, a wide range of species will self-select between diets that are high and low in protein in order to maintain protein intake.

    “When given a choice, a wide range of species will self-select between diets that are high and low in protein in order to maintain protein intake”

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Authors
ALMAIDAPAGAN, P., RUBIO, V, MENDIOLA, P., DECOSTA, J., & MADRID, J.
Affiliations
Universidad de Murcia (ES)
Venue
Physiology & Behavior
Publisher
Elsevier BV
Published
2006-07-30
Volume
88
Issue
4-5
Pages
550-558
ISSN
0031-9384 (ISSN-L)
OpenAlex
W2076290965
Cited by
37
References
20
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2022: 1 · 2021: 3 · 2020: 1 · 2019: 2 · 2017: 3 · 2016: 1 · 2015: 2 · 2012: 2
FWCI
4.10
Type
journal article
Language
en
Open access
Locations
  • Physiology & Behavior (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by-nc-nd)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-nd)
  • Hispana (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Life Sciences › Immunology and Microbiology › Immunology › Aquaculture disease management and microbiota
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Fish Biology and Ecology Studies
Keywords
sharpsnout seabream, Solea solea, protein dilution, associative learning, protein intake, energy intake, omnivorous fish, dietary protein
MeSH terms
Animals, Energy Intake, Capsules, Color, Cues, Data Interpretation, Statistical, Diet, Dietary Proteins, Excipients, Food Preferences, Gelatin, Taste, Sea Bream

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