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Enzymes in the animal-feed industry
G A Walsh1, R F Power, D R Headon
1Alltech European Biosciences Centre, National University of Ireland, Galway.
Trends in Biotechnology
|October 1, 1993
Summary
Animal producers face economic challenges, requiring better use of feedstuffs without growth-promoting drugs. Supplementing diets with hydrolytic enzymes aids nutrient absorption and removes antinutrients, but enzyme survival during processing and digestion is a concern.
Area of Science:
- Animal Nutrition
- Biotechnology
- Feed Science
Background:
- Economic pressures necessitate efficient utilization of low-grade animal feedstuffs.
- Legislation and consumer demand restrict the use of growth-promoting drugs in animal production.
- Hydrolytic enzyme supplementation is a growing strategy to improve nutrient availability and reduce antinutritional factors in animal diets.
Purpose of the Study:
- To evaluate the efficacy of hydrolytic enzymes in animal feed.
- To address concerns regarding enzyme stability during feed processing and gastrointestinal transit.
Main Methods:
- Dietary supplementation with specific hydrolytic enzymes.
- Assessment of nutrient digestibility and absorption.
- Evaluation of enzyme activity post-processing and in simulated digestive conditions.
Main Results:
- Enzyme supplementation improved the utilization of poorly available nutrients.
- Antinutritional factors in feed were reduced by enzyme action.
- Enzyme stability under processing temperatures and digestive tract conditions requires further investigation.
Conclusions:
- Hydrolytic enzymes offer a viable alternative to chemical additives for enhancing animal production.
- Further research is needed to ensure optimal enzyme performance and stability in animal feeding applications.