1996-2019. All Rights Reserved. Online Journal of Veterinary Research. You may not store these pages in any form except for your own personal use. All other usage or distribution is illegal under international copyright treaties. Permission to use any of these pages in any other way besides the before mentioned must be gained in writing from the publisher. This article is exclusively copyrighted in its entirety to OJVR. This article may be copied once but may not be, reproduced or re-transmitted without the express permission of the editors. This journal satisfies the refereeing requirements (DEST) for the Higher Education Research Data Collection (Australia). Linking: To link to this page or any pages linking to this page you must link directly to this page only here rather than put up your own page.


Online Journal of Veterinary Research©


Volume 21(1):25-32, 2017.

Blood gas profile of horses disqualified from endurance races.


Cinthia Beatriz da Silva Dumont (DVM, PhD), 1Fabieni Tiemy Menezes Okiyama (DVM, PhD),

1Andre Rodrigues da Cunha Barreto-Vianna (DVM, MSc), 1Kaique Nogueira (DVM),

2Roberta Ferro Godoy (DVM, PhD), 1Eduardo Maurício Mendes de Lima* (DVM, PhD).


1*Laboratory of Anatomy of Domestic Animals, Faculty of Agronomy and Veterinary Medicine, Brasilia, DF, Brazil, 2Writtle University College,  Brasília, Distrito Federal, Brazil.




Da Silva Dumont CB, Menezes Okiyama FT, da Cunha Barreto-Vianna AR, Nogueira K, Godoy RF, de Lima EMM., Blood gas profile of horses disqualified from endurance races, Onl J Vet Res., 21(1):25-32, 2017. Venous blood gases and components from 15 horses disqualified after completing 30, 40, 60km or 72, 90 and 140km endurance races are described. Horses were evaluated before any intervention to promote recovery. Partial oxygen pressure, carbon dioxide, oxygen saturation, bicarbonate ion concentration, pH, hematocrit and total plasma protein in venous blood were measured. Adaptive metabolic and respiratory responses were observed as a result from dehydration induced by racing as well as obvious changes in hematocrit and TPP. Increase in hematocrit values and total plasma proteins revealed a moderate hypovolemia due to exercise. Blood gas analysis results were not different between groups and were similar to horse finalists in other endurance races. We assume that different racing distances were not determinants for disqualification whereas individual fitness level was.


KEYWORDS: Horses, Disqualified, Endurance Race, Venous blood gases, Dehydration.