Research Note: Corn energy and nutrient utilization by broilers as affected by geographic areas and carbohydrases

Alpha-amylase improves carbohydrate digestion, increasing the available energy to maximize the performance of broiler chickens. This study evaluated the inclusion of alpha-amylase in diets with metabolizable energy (ME) valorization on growth performance, carcass yield, and intestinal health of broiler chickens. A total of 640 male broiler chickens (Cobb 500) were distributed in a completely randomized design with four treatments and eight repetitions of 20 birds each. The treatments were: PC (positive control), NC (negative control with a reduction of 100 kcal ME per kg diet), 100g-AA (NC + 100 g alpha-amylase per kg of diet), and 200g-AA (NC + 200 g alpha-amylase per kg diet). At 42 days, broiler chickens in the PC and supplemented groups (100g-AA and 200g-AA) showed better ME utilization, and at 21 and 42 days, greater weight gain (P<0.05). Broiler chickens supplemented with 100g-AA and 200g-AA had better digestibility of dry matter, ash, and gross energy (P<0.05) at 42 days. The ileal digestibility of starch was higher in the 100g-AA and 200g-AA groups compared to the PC group (P<0.10) at 42 days. The concentration of butyric acid in the cecal content was higher in the 200g-AA group compared to the PC group (P<0.05) at 35 days. Supplementation of alpha-amylase in diets with reduced ME is a viable strategy to optimize the performance of broiler chickens.

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Research Note: Corn energy and nutrient utilization by broilers as affected by geographic areas and carbohydrases

Cited by 3 publications

References 9 publications

The effect of protease supplementation in broiler chicken diets containing maize from different batches on growth performance and nutrient digestibility

The effect of protease supplementation in broiler chicken diets containing maize from different batches on growth performance and nutrient digestibility

Positive effect of fermented sorghum on productivity, jejunal histomorphology, and tight junction gene expression in broiler chickens

Alpha-amylase supplementation improves broiler performance and intestinal health under reduced metabolizable energy conditions

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