Suplementación de cromo sobre concentraciones séricas de glucosa, cortisol e insulina en equinos deportistas
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Rev. Inv. Cs. Agro. y Vet.
Abstract
RESUMEN: El objetivo del estudio fue determinar como la suplementación de cromo afecta el rendimiento de caballos deportivos, se evaluó los posibles efectos de dos fuentes de suplementos de cromo orgánico en caballos atléticos. Se evaluaron 15 equinos deportivos, raza Argentina Saddle, de 12 a 15 años, alimentados con concentrado, pasto de centeno y heno de alfalfa. Fueron divididos en tres grupos experimentales: i) el grupo de control recibió dieta basal sin suplementación, ii) dieta basal suplementada con 20 mg de cromo en forma de levadura enriquecida por 30 días; y iii) dieta basal suplementada con 20 mg de cromo en forma de tripicolinato de cromo por 30 días. Después, se realizó una prueba submáxima de esfuerzo y posterior una evaluación de niveles sanguíneos de glucosa, cortisol e insulina. El análisis estadístico del nivel de glucosa no mostró diferencias significativas para ninguno de los tratamientos (P> 0.05), pre y post ejercicio. El cortisol plasmático fue similar entre el tratamiento pre-ejercicio, la levadura enriquecida con cromo y el cromo orgánico, disminuyeron el nivel de cortisol en sangre post ejercicio (P <0,05). La concentración plasmática de insulina se vio influenciada por la suplementación con cromo después del ejercicio intensivo, los resultados demostraron que el nivel de insulina en sangre fue mayor en los caballos que no recibieron suplementación (P <0.01) en comparación con los grupos que recibieron suplementación de cromo. La suplementación con cromo orgánico en caballos deportivos no modificó la glucosa plasmática, pero si la concentración sanguínea de cortisol e insulina.
ABSTRACT: The objective of the study was to determine how chromium supplementation affects the performance of sports horses, for which the possible effects of two sources of organic chromium supplements in athletic horses were evaluated. Fifteen sporting horses were evaluated, Argentina Saddle breed, aged 12 to 15 years, which were fed with concentrate, rye grass and alfalfa hay. They were divided into three experimental groups: i) the control group received a basal diet without supplementation, ii) a basal diet supplemented with 20 mg of chromium in the form of enriched yeast for 30 days; and iii) basal diet supplemented with 20 mg of chromium in the form of chromium tripicolinate for 30 days. After this time, a submaximal stress test was carried out and subsequent evaluation of blood levels of glucose, cortisol and insulin. The statistical analysis of the glucose level did not show significant differences for any of the treatments (P> 0.05), before and after exercise. Plasma cortisol was similar between pre-exercise treatment, but chromium-enriched yeast and organic chromium decreased post-exercise blood cortisol level (P <0.05). Plasma insulin concentration was influenced by chromium supplementation after intensive exercise, the results showed that the blood insulin level was higher in the horses that did not receive supplementation (P <0.01) compared to the groups that received supplementation. Chrome. Organic chromium supplementation in sporting horses did not modify plasma glucose, but the blood concentration of cortisol and insulin did.
ABSTRACT: The objective of the study was to determine how chromium supplementation affects the performance of sports horses, for which the possible effects of two sources of organic chromium supplements in athletic horses were evaluated. Fifteen sporting horses were evaluated, Argentina Saddle breed, aged 12 to 15 years, which were fed with concentrate, rye grass and alfalfa hay. They were divided into three experimental groups: i) the control group received a basal diet without supplementation, ii) a basal diet supplemented with 20 mg of chromium in the form of enriched yeast for 30 days; and iii) basal diet supplemented with 20 mg of chromium in the form of chromium tripicolinate for 30 days. After this time, a submaximal stress test was carried out and subsequent evaluation of blood levels of glucose, cortisol and insulin. The statistical analysis of the glucose level did not show significant differences for any of the treatments (P> 0.05), before and after exercise. Plasma cortisol was similar between pre-exercise treatment, but chromium-enriched yeast and organic chromium decreased post-exercise blood cortisol level (P <0.05). Plasma insulin concentration was influenced by chromium supplementation after intensive exercise, the results showed that the blood insulin level was higher in the horses that did not receive supplementation (P <0.01) compared to the groups that received supplementation. Chrome. Organic chromium supplementation in sporting horses did not modify plasma glucose, but the blood concentration of cortisol and insulin did.
Description
Vol. 5, No. 14