Avaliação nutricional e utilização da glicose de milho na alimentação de frangos de corte na fase pré-inicial

Abstract

The aimed to evaluate the effect of different inclusion levels of corn glucose in pellet diets for broilers in the pre-initial parameters on growth performance, metabolization of the rations and body composition until seven days of age. Were used 300 male broiler chicks, Cobb-500, distributed in a completely randomized design with five treatments and six replicates of 10 birds in each experimental unit. Treatments consisted of a basal diet based on corn and soybean meal and four diets with the following inclusion levels of glucose: 3, 6, 9 and 12%. Data were subjected to analysis of variance and means were tested with Dunnett average a 5% probability and regression analysis by the models: linear, quadratic, and sigmoidal. The inclusion levels of corn glucose affect consumption, weight gain and feed conversion. No significant differences on the metabolization of feed within 1 to 3 days, but differences were observed within 4 to 7 days, increasing the inclusion level of glucose led to an increase in carcass fat deposition and decreased protein deposition. It is recommended the use of pelleted diets with inclusion of 3% corn glucose for broiler chicks in the pre-start.