Metabolic responses in endurance horses at exhausted syndrome

I.А Maksymovych,L.G Slivinskа

doi:10.32718/ujvas1-1.03

Abstract

The article shows the results of the study of biochemical blood indices in sports horses. It is shown that in horses after exercise developing the metabolic syndrome which is a result of insufficient supply of organs and tissues of energy accompanied by development of dehydration, cytolysis syndrome, uremic syndrome, electrolyte imbalance. Evaluation of cardiac output in horses must be performed during and after physical exertion, when during latent disease manifests itself clinically. It is important to know the ways of flowing the course of metabolic processes that occur in the body of horses during physical activity of varying intensity. The most common reason for excluding horses from sports events is metabolic disorders and cardiovascular dysfunction. The aim of the work was to investigate changes in biochemical blood parameters in sports horses after physical exertion. The material for research was horses, which are used in classical equestrian sports. In all horses the general analysis and biochemical parameters of blood, characterizing the functional state of the organs (heart, liver, kidneys) were investigated. The most frequent in horses for physical overstrain is registered increased fatigue, dyspnea, tachycardia, less frequent arrhythmias. In sports horses after exercise develops dehydration (hyperproteinemia), uremic syndrome (increasing the concentration of urea and creatinine), cytolysis syndrome (activity increase of AST and ALT), electrolyte imbalance (decrease in serum sodium and potassium). Hyperlactatemia that occurs in horses during exercise causes changes in the permeability of cardiomyocytes and exit enzymes in the blood and can play a key role in the pathogenesis of myocardial dystrophy. Installed tests can serve for early diagnosis of metabolic syndrome in horses for exercise.

Highlights

The combination of the cardiovascular system diseases and metabolic disorders in the humane medicine has been known since the 1940s
For horses the role of protein during physical activity is unknown, but it is assumed that carbohydrates and fat oxidations predominate in energy supply (Pösö Reeta et al, 2004)
Serum total protein level horses of all breeds before physical activity was on the same level

Summary

Introduction

The combination of the cardiovascular system diseases and metabolic disorders in the humane medicine has been known since the 1940s. The physical activity of horses requires energy for a long time (Treiber et al, 2006). Under such conditions, a stable energy requirement is accompanied by metabolic disorders, and that causes dysfunction of the cardiorespiratory, endocrine and neuromuscular systems (Flaminio and Rush, 1998; Schott et al, 2006). The most common reason for excluding horses from sport competitions is colic (Fielding et al, 2009), while other researchers have found that the main cause is metabolic disorders and disfunction cardiovascular system (Trigo et al, 2010)

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