Evaluation of glucose and insulin response to haylage diets with different content of nonstructural carbohydrates in 2 breeds of horses

Domestic Animal Endocrinology
S LindåseJ Bröjer

Abstract

Information about the effect of nonstructural carbohydrates (NSCs) in forage on the postprandial glucose and insulin response in horses is scarce. This is of interest as postprandial hyperinsulinemia in horses is a risk factor for laminitis. In addition, insulin sensitivity (IS) differs between breeds. The aim was to evaluate the postprandial glucose and insulin response to haylage diets with different NSC content in horses of 2 different breeds and to evaluate the relationship between the postprandial insulin response and measures of IS derived from a frequently sampled intravenous glucose tolerance test (FSIGTT). Standardbreds (n = 9) and Icelandic horses (n = 9) with a mean body condition score of 5.5 ± 0.6 (scale 1-9) were studied. Horses were clinically healthy at the start of the study and had no history of endocrinopathic laminitis. The experiment was conducted as a replicate 3 × 3 Latin square, in which horses were fed haylage diets with low (4.2%), medium (13.6%), and high (18.2%) NSC content of dry matter. Blood sampling was performed before feeding and every 30 min until 300 min after feeding. An FSIGTT was also performed in all horses. The early (first 60 min) and the total (300 min) postprandial glucose and insulin...Continue Reading

Citations

Apr 20, 2019·Journal of Veterinary Internal Medicine·Clare MacLeod
Apr 7, 2021·The Veterinary Clinics of North America. Equine Practice·Megan ShepherdKrishona L Martinson

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