Effects of isoenergetic quantities of a low-starch muesli feed high in fat and fibre vs. oat grains on the glycemic and insulinemic responses and feed intake patterns in sport ponies.
Abstract: Aim of this study was to compare glycemic and insulinemic responses and feed intake patterns in sport ponies after feeding isoenergetic quantities of low-starch muesli feed high in fat and fibre (FF) or oat grains (OG). Six sport ponies were randomly assigned to one of these two treatment groups for 2 × 3 weeks according to a crossover-design. Ponies received two equal meals/day of either semi-crushed OG (1 g starch/kg bwt*meal ) or an isoenergetic quantity of FF. Hay was also given in two equal meals/day and provided the remaining metabolisable energy up to 1.3-fold maintenance level. On day 21, blood was sampled 1 h after each pony received 0.5 kg hay (0 min). Then, the concentrate was provided and blood sampled 30, 60, 90, 120, 180, 240 and 300 min thereafter. Plasma glucose and serum insulin were analysed, and the areas under the curve (AUC) was calculated 120 and 300 min postprandial (PP). Feed intake patterns were measured in 4 ponies/group via a modified halter. OG was ingested faster than FF (feed intake time; FIT in min/kg DM: 8.8 ± 1.6 vs. 15.9 ± 1.62, p < 0.05) combined with a higher chewing frequency (p < 0.05). The AUCs were statistically higher with OG than FF (mmol/L*min : AUC : 776 ± 128 vs. 676 ± 80.4; AUC : 1811 ± 295.3 vs. 1569 ± 126.3; nmol/L*min : AUC : 38 ± 18 vs. 22 ± 8.1; AUC : 83 ± 39 vs. 35 ± 12; p < 0.05). Plasma glucose tended to decline following the intake of FF, which might be beneficial for equines with reduced glucose tolerance. This, however, requires further investigation. In this study, the ponies consumed OG unexpectedly rapidly. The rate of feed intake was similar to the results previously reported in the literature for warmblood horses.
Journal of Animal Physiology and Animal Nutrition © 2017 Blackwell Verlag GmbH.
Publication Date: 2017-06-20 PubMed ID: 28627064DOI: 10.1111/jpn.12716Google Scholar: Lookup
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- Journal Article
- Randomized Controlled Trial
Summary
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The research aimed to compare the effects of two different types of feeds on the glycemic and insulinemic responses and intake patterns of sport ponies. Findings suggested that the intake of low-starch muesli feed high in fat and fibre (FF) may be beneficial for equines with reduced glucose tolerance although more research is needed to confirm this.
Objective of the Research
- The study was conducted to examine and compare the effects of oat grains (OG) and a low-starch muesli feed high in fat and fibre (FF) on the blood sugar (glycemic) and insulin (insulinemic) responses, as well as the feeding patterns of sport ponies.
Methodology
- Six sport ponies were randomly allotted to feed on either OG or FF for a duration of three weeks.
- This was accomplished using a crossover-design, meaning the ponies’ diets were switched after the specified period.
- The feeding regimen was divided into two equal meals per day which were supplemented by an equivalent quantity of hay.
- Blood samples were collected at specified intervals post feeding to measure and compare the levels of plasma glucose and serum insulin in the ponies.
Key Findings
- It was observed that ponies consumed OG more rapidly than FF.
- OG intake was linked with a higher frequency of chewing.
- The areas under the curve (AUCs), which measure the total glycemic and insulinemic response during a specified period, were notably higher in OG than FF.
- The research noted a potential decrease in plasma glucose after FF intake, which may be beneficial for horses with reduced glucose tolerance.
Conclusions and Further Research
- The study concluded that feed types and their composition have a significant impact on the glycemic and insulinemic responses as well as the intake patterns in sport ponies.
- Although FF feed might be beneficial for ponies with reduced glucose tolerance, further investigation is necessary to confirm this preliminary finding.
- The rapid rate of OG intake observed in this study aligns with previously reported patterns for warmblood horses.
Cite This Article
APA
Bochnia M, Schürer C, Gottschalk J, Einspanier A, Hillegeist D, Wensch-Dorendorf M, Greef JM, Glatter M, Zeyner A.
(2017).
Effects of isoenergetic quantities of a low-starch muesli feed high in fat and fibre vs. oat grains on the glycemic and insulinemic responses and feed intake patterns in sport ponies.
J Anim Physiol Anim Nutr (Berl), 101 Suppl 1, 43-50.
https://doi.org/10.1111/jpn.12716 Publication
Researcher Affiliations
- Group Animal Nutrition, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
- Group Animal Nutrition, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, Germany.
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, Germany.
- Albrecht-Daniel-Thaer Institute of Agricultural and Veterinary Science e.V., University of Leipzig, Leipzig, Germany.
- Federal Research Center for Cultivated Plants, Crop and Soil Science, Julius Kuehn Institute, Braunschweig, Germany.
- Biometrics and Informatics in Agriculture Group, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
- Federal Research Center for Cultivated Plants, Crop and Soil Science, Julius Kuehn Institute, Braunschweig, Germany.
- Group Animal Nutrition, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
- Group Animal Nutrition, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany.
MeSH Terms
- Animals
- Avena
- Blood Glucose
- Dietary Fats / administration & dosage
- Dietary Fiber / administration & dosage
- Eating
- Edible Grain
- Energy Intake
- Horses / blood
- Horses / physiology
- Insulin / blood
- Starch / chemistry
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