Enzyme supplements

Several types of enzymes are commonly used in poultry feeding programmes, either individually or in combination. Each enzyme has a specific role in feed digestion:

• Amylase: This enzyme is produced in small amounts in the body and should therefore be provided from external sources to enhance starch digestion. When this enzyme is used in the diet, there will be an around 3-5% increase in the feed energy available to the bird. It is more effective when combined with xylanase.
• Protease: This enzyme is also produced in an insufficient amount in the body and should be provided from external sources. It acts on protein anti-nutrients found in some feed ingredients such as soybean, thus making the dietary ­protein more available.
• Cellulase: Cellulase cannot be synthesized in the body and should also be provided from external sources. It breaks down the cellulose molecule into simple sugars such as beta-glucose or shorter polysaccharides and oligosaccharides.
• Phytase: A proven technology used to release some of the non-digestible phosphorus and reduce the excretion of this element, thus reducing the cost of inorganic phosphorus supplementation.

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