El propósito de este trabajo fue evaluar el estatus hídrico y la concentración de cortisol sérico en equinos durante dos cabalgatas culturales en los municipios de Granada y Acacías del departamento del Meta (Colombia). Se seleccionaron 88 animales a conveniencia (44 por cabalgata), tomando muestras de sangre 1 h antes de iniciar la cabalgata (T0) y 15 min después de terminar la cabalgata (T1), además de un examen clínico para determinar su estatus hídrico (humedad de las mucosas, tiempo de llenado capilar, turgencia de la piel y la retracción del globo ocular). En el análisis de sangre se determinó el micro hematocrito, proteínas séricas totales y concentración de cortisol. Los resultados de las variables entre los dos tiempos se compararon con las pruebas de Shapiro Wilks y de Wilcoxon. La prueba de Spearman determinó las correlaciones entre edad y sexo con el cortisol ...

The aim of this study was to evaluate the potential for subchronic intoxication of Crotalaria pallida in sheep. Six rams were used, fed with hay and drinking water ad libitum, and 200 g/animal/day of commercial balanced ration. The sheep were distributed into a control group (G1) with two animals and an experimental group (G2) with four animals. In the G2 diet, 8 g of dry matter (DM) of C. pallida per kilogram of body weight were included for 28 days. All animals were clinically evaluated every 24 h. Animals were weighed and blood samples were taken for hemogram and liver and kidney profile on days 0, 14 and 28 post-exposure to C. pallida. All animals were slaughtered at the end of the study and samples were collected for histopathological analysis. No significant differences were found between groups with respect to clinical examination, hemogram data and blood chemistry; however, the h...