Efeito da suplementação com concentrados ricos em oleo sobre biomarcadores metabólicos para cavalos

Abstract

The performance of athletic horses had been improved with the elevation of the fat percentagem (EE) in concentrates. The objetive of this research was evaluate the supplementation with concentrate with different levels of EE over metabolic biomarkers in athletic horses, using a latin square with five horses and 5 treatments (6,5% EE (T6,5%), 8% EE (T8,0%), 12% EE (T12,0%), 14% EE (T14,0%) e 20% EE (T20,0%)). Animais received their isocaloric supplementation during 15 days and at 16th day, we did blood collection in these period: overnight fastening and after 0.5, 1.0, 2.0, 3.0, 4.0, 5.0 e 6.o hours after they were fed. Blood was used to determine: hematocrit, glucose, total plasma protein, urea, creatinine, triglycerides, and total cholesterol. Results were anylaszed by ANOVA, with two factores and repeated measurements, and Tukey test, both with P<0.05%. Results showed variation in [Glucose] during blood collection phases (P<0.05), but without differences between treatments and the interaction treatment and phases (P>0.05). Also, there was no difference at the [glucose] peak between treatment and area under the curve (P>0.05). All other biomarkers did not change (P>0.05). In conclusion, isoenergetic supplementation with concentrates with different levels of fat did not produce changes in analyzed biomarkers, showing that variation in EE, between 6,5 and 20.0%, may be used for equine athletes similarly.