Reference : Subclinical diseases affecting performance in Standardbred trotters: Diagnostic metho...
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
Subclinical diseases affecting performance in Standardbred trotters: Diagnostic methods and predictive parameters
Richard, Eric [Frank Duncombe Laboratory > Animal Health > Research and Development > >]
Fortier, Guillaume [> >]
Pitel, Pierre-Hugues [> >]
Dupuis, Marie-Capucine [Université de Liège - ULiège > > > Doct. sc. vété. (Bologne)]
Valette, Jean-Paul [> >]
Art, Tatiana mailto [Université de Liège - ULiège > Département de sciences fonctionnelles > Phys. neuro-muscul., de l'effort - Méd. sport. des animaux >]
Denoix, Jean-Marie [> >]
Lekeux, Pierre mailto [Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie - Doyen de la Faculté de Médecine vétérinaire >]
Van Erck, Emmanuelle [> >]
Veterinary Journal
Yes (verified by ORBi)
[en] Equine ; Performance ; Exercise ; Lower airways ; Sub-clinical disease
[en] The objectives of this study were to determine the prevalence of sub-clinical diseases in poorly-performing Standardbred horses, compare their physiological response to exercise with control horses, and identify predictive parameters of poor-performance. Fifty horses underwent thorough clinical and ancillary examinations, including haematological and biochemical evaluation, Doppler echocardiography, standardised exercise tests (SETs) on both treadmill and racetrack, treadmill video-endoscopy and collection of respiratory fluids. Most of the poorly-performing horses exhibited many concomitant diseases. The most frequently diagnosed problems involved the lower and upper respiratory tract and the musculoskeletal system. Poor-performers had lower speeds at a blood lactate (LA) concentration of 4 mmol/L (VLA4) and a heart rate (HR) of 200 bpm (V200) on treadmill and racetrack, as well as lower values for haematological parameters, plasma angiotensin-converting enzyme and antioxidants, compared to control horses. Problems of the respiratory system were the most frequently diagnosed sub-clinical diseases affecting performance. SETs, together with some blood markers, may be useful as a non-specific diagnostic tool for early detection of diseases that may affect performance.
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