Efeito do complexo enzimático no valor energético e nutricional de dietas e desempenho de frangos de corte

Abstract

In order to analyze the enzymatic Bioenzima® complex (EC) on digestibility of broiler’s diets, four trials were conducted in the Animal Science department at University Federal Rural of Pernambuco. The birds were allocated in cages and distributed completely randomized design, five treatments and six replications with 10, 8, 5 and 4 birds/replication, respectively to each trail (1 to 9 days old, 11 to 20 days old – starter phase; and 21 to 30 days old, 31 to 40 days old – grower phase). The first treatment was called control diet without EC (D1), the second one was positive control with 150 ppm EC (D2) and three another treatment was called test diets, besides 150 ppm of EC also had overestimated nutrient composition (metabolizable energy, crude protein, calcium, available phosphorus and essential amino acids) of ingredients corn, soybean meal and wheat meal in 2.5% (D3), 5.0% (D4) and 7.5% (D5). The enzymatic complex had amylase, ᵦ-glucanase, phytase, cellulase, protease, pectinase and xylanase. The broiler performance and apparent metabolizable energy, apparent metabolizable energy corrected by nitrogen, ileal digestibility of dry matter and crude protein of diets and phosphorus retention were evaluated. In conclusion, in both experiments of starter phase and until the growing phase 21 to 30 days old, the EC improved the digestibility of broiler’s diets based in corn, soybean meal and wheat meal overestimated in 2,5%, although, in the last growing phase (31 to 40 days old), the EC used improved de digestibility of diets until 5%, because showed compensatory effect on diets digestibility and it didn’t impair the performance of broiler.