Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L)
The nutrient balancing hypothesis proposes that, when sufficient food is available, the primary goal of animal diet selection is to obtain a nutritionally balanced diet. This hypothesis can be tested using the Geometric Framework for nutrition (GF). The GF enables researchers to study patterns of nu...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:92897 2023-07-02T03:29:31+02:00 Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) Felton, Annika M. Felton, Adam Raubenheimer, David Simpson, Stephen J. Krizsan, Sophie J. Hedwall, Per-Ola Stolter, Caroline 2016-03-29T15:41:50.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-4f-wzwu https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92897 unknown doi:10.5061/dryad.857dd/1 doi:10.1371/journal.pone.0150870 PMID:26986618 http://nbn-resolving.org/urn:nbn:nl:ui:13-4f-wzwu doi:10.5061/dryad.857dd https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92897 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2016 ftdans https://doi.org/10.5061/dryad.857dd/110.1371/journal.pone.015087010.5061/dryad.857dd 2023-06-13T13:21:28Z The nutrient balancing hypothesis proposes that, when sufficient food is available, the primary goal of animal diet selection is to obtain a nutritionally balanced diet. This hypothesis can be tested using the Geometric Framework for nutrition (GF). The GF enables researchers to study patterns of nutrient intake (e.g. macronutrients; protein, carbohydrates, fat), interactions between the different nutrients, and how an animal resolves the potential conflict between over-eating one or more nutrients and under-eating others during periods of dietary imbalance. Using the moose (Alces alces L.), a model species in the development of herbivore foraging theory, we conducted a feeding experiment guided by the GF, combining continuous observations of six captive moose with analysis of the macronutritional composition of foods. We identified the moose’s self-selected macronutrient target by allowing them to compose a diet by mixing two nutritionally complementary pellet types plus limited access to Salix browse. Such periods of free choice were intermixed with periods when they were restricted to one of the two pellet types plus Salix browse. Our observations of food intake by moose given free choice lend support to the nutrient balancing hypothesis, as the moose combined the foods in specific proportions that provided a particular ratio and amount of macronutrients. When restricted to either of two diets comprising a single pellet type, the moose i) maintained a relatively stable intake of non-protein energy while allowing protein intakes to vary with food composition, and ii) increased their intake of the food item that most closely resembled the self-selected macronutrient intake from the free choice periods, namely Salix browse. We place our results in the context of the nutritional strategy of the moose, ruminant physiology and the categorization of food quality. Other/Unknown Material Alces alces Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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Life sciences medicine and health care |
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Life sciences medicine and health care Felton, Annika M. Felton, Adam Raubenheimer, David Simpson, Stephen J. Krizsan, Sophie J. Hedwall, Per-Ola Stolter, Caroline Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) |
topic_facet |
Life sciences medicine and health care |
description |
The nutrient balancing hypothesis proposes that, when sufficient food is available, the primary goal of animal diet selection is to obtain a nutritionally balanced diet. This hypothesis can be tested using the Geometric Framework for nutrition (GF). The GF enables researchers to study patterns of nutrient intake (e.g. macronutrients; protein, carbohydrates, fat), interactions between the different nutrients, and how an animal resolves the potential conflict between over-eating one or more nutrients and under-eating others during periods of dietary imbalance. Using the moose (Alces alces L.), a model species in the development of herbivore foraging theory, we conducted a feeding experiment guided by the GF, combining continuous observations of six captive moose with analysis of the macronutritional composition of foods. We identified the moose’s self-selected macronutrient target by allowing them to compose a diet by mixing two nutritionally complementary pellet types plus limited access to Salix browse. Such periods of free choice were intermixed with periods when they were restricted to one of the two pellet types plus Salix browse. Our observations of food intake by moose given free choice lend support to the nutrient balancing hypothesis, as the moose combined the foods in specific proportions that provided a particular ratio and amount of macronutrients. When restricted to either of two diets comprising a single pellet type, the moose i) maintained a relatively stable intake of non-protein energy while allowing protein intakes to vary with food composition, and ii) increased their intake of the food item that most closely resembled the self-selected macronutrient intake from the free choice periods, namely Salix browse. We place our results in the context of the nutritional strategy of the moose, ruminant physiology and the categorization of food quality. |
author |
Felton, Annika M. Felton, Adam Raubenheimer, David Simpson, Stephen J. Krizsan, Sophie J. Hedwall, Per-Ola Stolter, Caroline |
author_facet |
Felton, Annika M. Felton, Adam Raubenheimer, David Simpson, Stephen J. Krizsan, Sophie J. Hedwall, Per-Ola Stolter, Caroline |
author_sort |
Felton, Annika M. |
title |
Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) |
title_short |
Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) |
title_full |
Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) |
title_fullStr |
Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) |
title_full_unstemmed |
Data from: The nutritional balancing act of a large herbivore: an experiment with captive moose (Alces alces L) |
title_sort |
data from: the nutritional balancing act of a large herbivore: an experiment with captive moose (alces alces l) |
publishDate |
2016 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-4f-wzwu https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92897 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_relation |
doi:10.5061/dryad.857dd/1 doi:10.1371/journal.pone.0150870 PMID:26986618 http://nbn-resolving.org/urn:nbn:nl:ui:13-4f-wzwu doi:10.5061/dryad.857dd https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:92897 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.857dd/110.1371/journal.pone.015087010.5061/dryad.857dd |
_version_ |
1770274844553773056 |