INTRODUTIONPhysical exercise is responsible for alterations in various blood parameters (KIENZLE et al., 2006). Biochemical (TOLEDO et al., 2001), hydroelectrolytic (DI FILIPPO et al., 2009;, hormonal and metabolic (NOLETO et al., 2016) changes have been described in horses submitted to exercise of different intensities and durations. These changes occur as the organism attempts to adapt and supply the increased metabolic demand triggered by physical effort (PICCIONE et al., 2007) and are under most circumstances considered beneficial to the animal. However, physical exertion, when overly exhaustive or without proper training, can induce severe organic alterations, especially when the different tissues, organs or systems are not sufficiently adapted to support the different types of overload required of them without causing large changes in homeostasis (OGONOVSZKY et al., 2005

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The mechanism related to the practice of oral carbohydrate (CHO) supplementation prior to intense exercise of a short duration (<30 min) for athletic horses remains unclear. Several studies in human athletes showed that the central nervous system played an important role in the enhancement of athletic performance due to CHO contact with undefined receptors in the oropharyngeal mucosa. This study aims to investigate the influence of CHO mouth rinse on the exercise performance of horses. In this double blind, randomised, placebo-controlled study, seven Mangalarga Marchador horses underwent a standardised exercise test (SET) in a field. The following protocols involving a single mouthwash (1 litre) had been used: a mouth rinse of 6.4% maltodextrin-water solution (CHO test), and a mouth rinse of only water solution (placebo test). The mean plasma lactate concentration immediately after SET (lactate peak) was higher in the CHO test (24.33±3.72 mmol/l) than in the placebo test (18.19±4.01 mmol/l), (P<0.001). No difference was observed in the mean time-to-exhaustion, mean and maximum heart rate, plasma glucose concentration and serum creatinine-kinase activity. Several studies described that there were improvements in the time-trial performance of cyclists and runners after a mouth rinse of CHO solution, whereas some did not. Carbohydrate mouth rinse had no influence on exercise performance in this study. Further investigations are required, as the significance of an increased plasma lactate concentration due to a CHO mouth rinse has yet to be elucidated.

ResumoEste trabalho tem como finalidade divulgar a utilização de Dermestes maculatus na preparação de material osteológico de diferentes espécies animais e, ao mesmo tempo, contribuir para a diversificação da coleção osteológica da Seção de Anatomia da UENF. Seis animais de diferentes espécies tiveram seus esqueletos limpos pelos insetos. O procedimento de limpeza completa foi obtido em diferentes períodos de tempo e mantinha uma relação direta com o número de larvas e insetos adultos presentes nas colônias. No final da exposição, alguns