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The feedase effect improves the efficiency of poultry production by Marcio Ceccantini, Scientific and Technical Manager for Feed Digestibility Category, Adisseo; Sofia Zenagui, Marketing Manager for Feed Digestibility Category, Adisseo
T
he 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
Figures 1a and 1b: The addition of feedase to reformulated diets returned broiler performance (BWG & FCR) to that of the positive control. Source: Jlali M., Bello A., Cozannet, P., Alleno C., Ceccantini M. and Preynat A. (2018). Effects of a multi-carbohydrase and phytase complex (MCPC) on growth performance of broilers fed wheat-corn soybean meal-based diets reduced in metabolizable energy and nutrients. Proceedings of the 11th Asian Pacific Poultry Conference.
70 | October 2019 - Milling and Grain