ArticlePoultry science2021
Exogenous α-amylase improves the digestibility of corn and corn-soybean meal diets for broilers.
Article in Poultry science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 19 citations in OpenAlex.
- Rice Bran as a Sustainable Feed Material Substitute to Improve the Meat Quality in Late-Stage Wenchang Chicken.Biology · 2026Article
- Dietary Supplementation of Protease and/or Amylase Improves Growth Performance, Digestive Function, and Intestinal Health of Weaned Piglets.Animals : an open access journal from MDPI · 2026Article
- Effect of Replacing Conventional Corn with Corn Containing Thermostable α-Amylase Enzyme (AMY797E) in Standard and Low-Energy Diets in Laying Hens.Animals : an open access journal from MDPI · 2026Article
- Carbohydrases and Phytase in Poultry and Pig Nutrition: A Review beyond the Nutrients and Energy Matrix.Animals : an open access journal from MDPI · 2024Review
- The Effect of Exogenous Amylase Supplementation on the Nutritional Value of Pea (Animals : an open access journal from MDPI · 2023Article
- Liver fat metabolism of broilers regulated byFrontiers in microbiology · 2022Article
- Exogenous α-amylase improves the digestibility of corn and corn-soybean meal diets for broilers.Poultry science · 2021Article
- Intestinal starch and energy digestibility in broiler chickens fed diets supplemented with α-amylase.Poultry science · 2020Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Starch is the main energy source in broiler diets. However, endogenous amylase secretion in young broilers is suboptimal to completely digest dietary starch, so exogenous α-amylase supplementation may help increase starch digestibility. The objective of this study was to assess the supplementation of increasing doses of an exogenous α-amylase (0, 40, 80, 120, and 160 kilo-novo α-amylase units (KNU)/kg) on corn and on a complete corn-soybean meal diet for 25-day-old broilers. Jejunal and ileal apparent digestibility coefficients of available starch, resistant starch, total starch, and DM, DM total tract retention, as well as dietary AME levels were evaluated. Interactions (P < 0.05) between diets and α-amylase showed that the enzyme had a more evident effect on increasing DM jejunal digestibility and AME on corn compared with the complete diet. Corn DM digestibility increased to a maximum of 67.84% with up to 47 KNU/kg, whereas 89 KNU/kg led to a maximum of 53.92% in the complete diet A maximum increase of 64 kcal AME/kg was obtained with 80 KNU/kg on the complete diet, whereas 109 KNU/kg generated 327 kcal AME/kg on corn (P < 0.05). Increasing the α-amylase dose linearly increased ileal digestibility of resistant starch (P < 0.05), and the effect on DM total tract retention was quadratic (P < 0.05). Corn showed a higher digestibility for DM, resistant and total starch, as well as DM total tract retention and AME, compared with the complete diet (P < 0.05). Treatments had no influence on available starch. The inclusion of exogenous α-amylase improves starch, DM, and energy utilization of corn-based and corn-soybean meal-based diets for broilers.
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