Perfil proteico, energetico, enzimático e mineral de Búfalas Murrah alimentadas com dieta á base de cana-de-açúcar e diferentes concentrações de ureia

Abstract

Due to the need to understand and maintain the necessary nutritional balance conditions in animal production, the objective of this study was to determine the profile of the main American biochemical variables and to evaluate how the nutritional and physiological variables of these individuals are met in relation to this alternative way. The experiment was conducted in the Bubalinoculture sector of the Department of Animal Science, Laboratory of Metabolic and Nutritional Diseases of the Department of Veterinary Medicine and at the Center for Analytical Chemistry of the Research Support Center (CENAPESQ), both from the Federal Rural University of Pernambuco (UFRPE). . Nineteen new Murrah buffaloes with initial mean body weight (CP) of 210 ± 50 kg were used. The animals were weighed, used and deminerated before the beginning of the experimental period and housed in individual stalls, individual feeders and tonnage drinkers for two animals. The study lasted 62 days, from July 26 to September 26, 2019. It was found that the provision of sugarcane-based diet supplemented with increasing urea levels of 0, 0.7, 1, 4 and 2.1% for murrah buffalo heifers negatively influence the weight gain of these animals, and linearly increase serum urea and urea nitrogen (BUN) concentration, does not affect energy, protein, mineral metabolism and enzymatic activity. Therefore, it does not recommend the use of sugarcane diets with the urea use ranges to murrah buffalo heifers using weight gain. M But an experimental diet is recommended as an alternative food maintenance alternative, which can be used both as an economically viable option for the monetary value of its components, and as a valuable food source applied to scarce food. foods and regions that highlighted the production of national sugarcane, especially the northeast of Brazil.