14 Jan Recent advances in research on enzymes for poultry diets
Recent advances in research on enzymes for poultry diets
In recent years there has been a concerted effort to improve the nutritive worth of feedstuffs by using exogenous enzymes.
On the basis of many reports it may be concluded that the nutritional and, therefore, economic value of corn, soybean meal (SBM), and other ingredients commonly used in poultry diets in North America can be improved by the addition of appropriate preparations of phytase, carbohydrases, and other enzyme activities.
An increase in the productive value of diets with enzyme supplementation can be achieved by
1) release of P from phytate hydrolysis,
2) elimination of the nutrient encapsulating effect of the cell walls and therefore improved energy and amino acid availabilities,
3) solubilization of cell wall non starch polysaccharides (NSP) for more effective hindgut fermentation and improved overall energy utilization,
4) hydrolysis of certain types of carbohydrate–protein linkages and therefore improved availability of amino acids, and
5) elimination of the antinutritive properties of certain dietary NSP by their enzymatic hydrolysis to prebiotic type components which, in turn, may facilitate gut development and health in young chickens.
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