Insulinaemic and glycaemic responses to a second meal of a fibre- or starch-enriched compound feed in healthy horses.
Abstract: This study aimed to investigate the effect of a second meal of a fibre- or starch-enriched compound feed on glycaemic and insulinaemic responses in healthy horses. In a cross-over design, horses were fed either a starch-enriched compound feed (SCF) or a fibre-enriched compound feed (FCF). On days of blood collection, test diets were fed in the morning (0800 h, first meal) and a second meal was fed 510 min after the first meal was finished (second meal). Significantly higher glycaemic and insulinaemic responses were associated with SCF compared with FCF. Feeding FCF for the second meal yielded similar moderate glycaemic and insulinaemic responses compared with the first meal. Feeding SCF as a second meal yielded significantly reduced glycaemic and insulinaemic responses from the first meal. In practice, evaluating glycaemic and insulinaemic responses of a single meal may not sufficiently describe the overall impact if more than one meal is fed per day.
Copyright © 2015 Elsevier Ltd. All rights reserved.
Publication Date: 2015-02-03 PubMed ID: 25818097DOI: 10.1016/j.tvjl.2015.01.027Google Scholar: Lookup
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- Journal Article
- Randomized Controlled Trial
- Research Support
- Non-U.S. Gov't
Summary
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This study focuses on how a second meal of either a starch-enriched or fibre-enriched feed affects sugar and insulin levels in healthy horses. Interestingly, starch-enriched feed tends to increase these levels more than its fibre-enriched counterpart, although this difference lessens with the second meal. The findings suggest that assessing the effects of a single meal might not represent the total impact if the horse eats more than once daily.
Overview
In this research, the scientists wanted to determine the impacts that a second serving of either a fibre- or starch-enriched compound feed had on the glycaemic (sugar) and insulinaemic (insulin) responses in healthy horses.
Method
- The study utilized a cross-over design, whereby horses were subjected to different feeding plans at different moments in time. The feeding plans involved either a starch-enriched compound feed (SCF) or a fibre-enriched compound feed (FCF).
- On the days when they were collecting blood samples, the first feed (referred to as the first meal) was administered in the morning, at 8 a.m. A second meal was then offered to the horses 510 minutes after they had finished the first meal.
Findings
- The results unveiled that significantly higher glycaemic and insulinaemic responses were brought about by the starch-enriched feed (SCF) compared to the fibre-enriched feed (FCF).
- When the fibre-enriched feed was fed as the second meal, moderate glycaemic and insulinaemic responses similar to those of the first meal were experienced.
- On the other hand, if the starch-enriched compound feed was used as the second meal, it led to significantly reduced sugar and insulin responses as compared to the first meal.
Implications
- The findings suggest that evaluating glycaemic and insulinaemic responses of a single meal may not be an adequate determination of the overall impact when more than one meal is offered each day.
- The researchers conclude that feeding strategies and compound feed types (fibre- or starch-enriched) can significantly alter the glycaemic and insulinaemic responses in horses.
Cite This Article
APA
Karasu GK, Krabbenborg R, Einspanier A, Vervuert I.
(2015).
Insulinaemic and glycaemic responses to a second meal of a fibre- or starch-enriched compound feed in healthy horses.
Vet J, 204(2), 220-222.
https://doi.org/10.1016/j.tvjl.2015.01.027 Publication
Researcher Affiliations
- Institute of Animal Nutrition, Nutrition Diseases and Dietetics, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 9, D-04103 Leipzig, Germany.
- Pavo Horsefeed, 5830 AD Boxmeer, The Netherlands.
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 1, D-04103 Leipzig, Germany.
- Institute of Animal Nutrition, Nutrition Diseases and Dietetics, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 9, D-04103 Leipzig, Germany. Electronic address: ingrid.vervuert@vetmed.uni-leipzig.de.
MeSH Terms
- Animal Feed / analysis
- Animals
- Blood Glucose
- Cross-Over Studies
- Dietary Fiber / analysis
- Horses / blood
- Horses / physiology
- Insulin / blood
- Starch / chemistry
- Time Factors
Citations
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