Equilíbrio acidobásico, parâmetros urinários e sanguíneos de gatos induzidos ao estresse e suplementados com composto antioxidante

Abstract

This study aimed to evaluate the supplementation of a commercial antioxidant EconomasE (Alltech, Brazil - AOX) on the acid-base balance, urinary parameters, red blood count (RBC) and erythrocyte osmotic fragility (EOF) of stressed cats. Twenty-four adult cats (3.49±0.87kg) were distributed in a completely randomized design with four levels (0, 250, 500, 750mg AOX/kg feed dry matter) and six replicates for a period of 80 days. Cats were induced to stress through the presence of dogs in the experimental environment (stressor agent; AE) from the 61th day to the end. Partial pressure of carbon dioxide (pCO2) and bicarbonate (HCO3) increased linearly (P < 0.05) with increased intake of AOX. The highest values of total carbon dioxide (tCO2) (P < 0.05) were observed in cats fed the 500 and 750mg AOX/kg diet. Hemoglobin concentration was higher (P < 0.05) in animals fed the 250 and 500mg AOX/kg diet. The urinary parameters and EOF were similar among all diets. These data indicate that AOX supplementation has beneficial effects in acid-base balance and hemoglobin concentration of stressinduced cats.