Carbohydrase inclusion in a corn-soybean diet improves broiler growth performance

An experiment was conducted to evaluate the effect of diets with reduced energy level content, supplemented carbohydrase, on broiler performance and coefficient metabolizability nutrients. A total 720 one-day-old male Cobb-500 chicks were distributed in a completely randomized design, six treatments, eight repetitions 15 birds each. The treatments were: (1) positive control, basal diet meet requirements chickens (PC); (2) negative reduction 80 kcal kg-1 (NC); (3) NC + alphagalactosydase; (4) xylanase; (5) xylanase alphagalactosydase, (6) enzymatic blend (alphagalactosydase, xylanase, pectinase amylase). nutrient digestibility not improved by use enzymes. At 7 days age, broilers which fed enzymes showed lower feed intake (FI) better conversion ratio (FCR) than PC. Both resulted worse at 21, 35 42 old. alphagalactosydase isolated or combination, corn-soybean meal-based is effective improving growth energy-reduced diets.