by
Marcio Ceccantini, Scientific and Technical Manager for Feed Digestibility
Category, Adisseo; Sofia Zenagui, Marketing Manager for Feed Digestibility
Category, Adisseo
The economic value of improving efficiency in poultry production is great. Bird performance can be optimised by improving feed digestibility using enzymes. However, simultaneous use of different types of enzymes has been a challenge, mainly due to the lack of technical data on the optimal way to combine them, resulting in large variation of recommendations on enzyme combinations.
A global enzyme solution enables significant reduction in dietary nutrient levels and increasing nutrient retention. Trials have shown this improves poultry performance and can significantly help to reduce feed costs.
The indigestible fraction
Diets fed to broilers and other livestock contain a considerable indigestible fraction. In fact, 20-to-25 percent of the organic matter is unavailable for absorption in broilers. Because of this, over the last three decades several enzymes have been developed to improve feed digestibility. The use of phytases and carbohydrases, has increased raw material options, allowed nutritionists to take advantage of local raw materials and helped to reduce feed costs.
Whilst the modes of action and substrates of phytases and carbohydrases are different, their effects on diet digestibility and performance are complimentary. The nutrient-capturing mechanisms of non-starch polysaccharides and phytate are not the same. Therefore, if both types can be degraded, nutrient release will be higher.
The ability of efficient multi-enzyme solutions to improve global feed digestibility is known as the feedase effect. By reducing the indigestible fraction of feed, as well as the effect of anti-nutritional factors, more nutrients are released.
Using phytase plus carbohydrases
Phytase addition, by reducing phytate in the diet, improves the availability of amino acids and minerals (mainly P & Ca). It also reduces the cost of mineral addition, decreasing associated pollution from organic manure and leaving more space for vegetable raw materials.
By increasing the standard inclusion level of phytase, phytate and its breakdown products are quickly and further degraded. Anti-nutritional effects are increasingly reduced, and performance further improved.
By breaking down plant cell walls, carbohydrases liberate more nutrient at the same time. Carbohydrases help to reduce digestive problems associated with feeding wheat and barley diets, by reducing viscosity of the digesta. In addition, the certain polysaccharides, presents in most common feed ingredients, the result of carbohydrases breaking down fibre in the feed, have a prebiotic effect that benefits the microflora.
These classes of enzyme have distinct but complimentary effects – one type, whatever the dose, cannot substitute the efficiency of a combination. Both kinds of enzyme degrade indigestible fractions within diet – in so doing they increase energy availability and nutrient value of the feed.
In order to take full advantage of this, the enzymes need enough ‘room’ in the diet. To maximise the economic benefits, specifications should be reduced in terms of metabolisable energy (ME), digestible amino acids (dAA), available phosphorus (avP), calcium (Ca) and sodium (Na).
Read more HERE.
The economic value of improving efficiency in poultry production is great. Bird performance can be optimised by improving feed digestibility using enzymes. However, simultaneous use of different types of enzymes has been a challenge, mainly due to the lack of technical data on the optimal way to combine them, resulting in large variation of recommendations on enzyme combinations.
A global enzyme solution enables significant reduction in dietary nutrient levels and increasing nutrient retention. Trials have shown this improves poultry performance and can significantly help to reduce feed costs.
The indigestible fraction
Diets fed to broilers and other livestock contain a considerable indigestible fraction. In fact, 20-to-25 percent of the organic matter is unavailable for absorption in broilers. Because of this, over the last three decades several enzymes have been developed to improve feed digestibility. The use of phytases and carbohydrases, has increased raw material options, allowed nutritionists to take advantage of local raw materials and helped to reduce feed costs.
Whilst the modes of action and substrates of phytases and carbohydrases are different, their effects on diet digestibility and performance are complimentary. The nutrient-capturing mechanisms of non-starch polysaccharides and phytate are not the same. Therefore, if both types can be degraded, nutrient release will be higher.
The ability of efficient multi-enzyme solutions to improve global feed digestibility is known as the feedase effect. By reducing the indigestible fraction of feed, as well as the effect of anti-nutritional factors, more nutrients are released.
Using phytase plus carbohydrases
Phytase addition, by reducing phytate in the diet, improves the availability of amino acids and minerals (mainly P & Ca). It also reduces the cost of mineral addition, decreasing associated pollution from organic manure and leaving more space for vegetable raw materials.
By increasing the standard inclusion level of phytase, phytate and its breakdown products are quickly and further degraded. Anti-nutritional effects are increasingly reduced, and performance further improved.
By breaking down plant cell walls, carbohydrases liberate more nutrient at the same time. Carbohydrases help to reduce digestive problems associated with feeding wheat and barley diets, by reducing viscosity of the digesta. In addition, the certain polysaccharides, presents in most common feed ingredients, the result of carbohydrases breaking down fibre in the feed, have a prebiotic effect that benefits the microflora.
These classes of enzyme have distinct but complimentary effects – one type, whatever the dose, cannot substitute the efficiency of a combination. Both kinds of enzyme degrade indigestible fractions within diet – in so doing they increase energy availability and nutrient value of the feed.
In order to take full advantage of this, the enzymes need enough ‘room’ in the diet. To maximise the economic benefits, specifications should be reduced in terms of metabolisable energy (ME), digestible amino acids (dAA), available phosphorus (avP), calcium (Ca) and sodium (Na).
Read more HERE.
The Global Miller
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which is published by Perendale Publishers Limited.
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