Efects of Exogenous Glucoamylase Enzymes Alone or in Combination with a Neutral Protease on Apparent Total Tract Digestibility and Feces D-Lactate in Crossbred Angus Bulls Fed a Ration Rich in Rolled Corn

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  • Maria Devant, IRTA, Spain
  • Shukun Yu, DuPont Nutrition Biosciences ApS, Brabrand, Denmark
  • Sandra Genís, BonÀrea Agrupa, Traspalau 8, 25210 Guissona, IRTA, Spain
  • Torben Larsen
  • Li Wenting, DuPont Nutrition & Biosciences, Wilmington, DE 19803, USA, United States
Simple Summary: Dietary enzyme supplementation, as a feed additive, has been well adopted in monogastric production to increase feed eciency. However, in ruminants, considerably fewer studies have been done and fewer, if any, commercial enzymes have been adopted as a feeding strategy. Feedlot cattle are commonly fed high-starch diets, with varying starch digestibilities depending on type of grain, and degree of grain processing. Improvement in starch digestibility
in low processed grain diets will undoubtedly warrant economic benefits to feedlot producers and reduce environmental impact of intensive beef production. In this study, we have shown that dietary glucoamylase supplementation improved 7 to 13% apparent digestibility of dry matter and starch in bulls fed rolled corn-based diets, suggesting that enzyme (glucoamylase) supplementation could be a promising strategy to improve starch eciency for finishing beef cattle.
Original languageEnglish
Article number1077
Number of pages8
Publication statusPublished - Jun 2020

    Research areas

  • beef, feed, glucoamylase, protease;, total tract digestibility, fecal D-lactate Animals

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